A puzzle by Princeton mathematician John Horton Conway:
Last night I sat behind two wizards on a bus, and overheard the following:
A: I have a positive integral number of children, whose ages are positive integers, the sum of which is the number of this bus, while the product is my own age.
B: How interesting! Perhaps if you told me your age and the number of your children, I could work out their individual ages?
A: No.
B: Aha! AT LAST I know how old you are!
Rem: Taking in account the fatherhood limitations, this is uniquely solvable.
(In reply to
computer aided solution by Charlie)
18 42 3 1 3 14
18 42 7 1 1 1 1 1 6 7
18 42 9 1 1 1 1 1 1 2 3 7
18 44 5 1 1 1 4 11
18 44 6 1 1 1 2 2 11
18 45 2 3 15
18 45 6 1 1 1 1 5 9
18 48 4 1 1 4 12
18 48 5 1 1 2 2 12
18 48 6 1 1 1 1 6 8
18 48 8 1 1 1 1 1 2 3 8
18 48 9 1 1 1 1 1 1 2 4 6
18 49 6 1 1 1 1 7 7
18 50 5 1 1 1 5 10
18 50 9 1 1 1 1 1 1 2 5 5
18 52 3 1 4 13
18 52 4 1 2 2 13
18 54 5 1 1 1 6 9
18 54 7 1 1 1 1 2 3 9
18 54 9 1 1 1 1 1 1 3 3 6
18 55 4 1 1 5 11
18 56 2 4 14
18 56 3 2 2 14
18 56 5 1 1 1 7 8
18 56 8 1 1 1 1 1 2 4 7
18 56 9 1 1 1 1 1 2 2 2 7
18 60 3 1 5 12
18 60 4 1 1 6 10
18 60 6 1 1 1 2 3 10
18 60 8 1 1 1 1 1 2 5 6
18 60 9 1 1 1 1 1 1 3 4 5
18 63 4 1 1 7 9
18 63 8 1 1 1 1 1 3 3 7
18 64 4 1 1 8 8
18 64 7 1 1 1 1 2 4 8
18 64 8 1 1 1 1 2 2 2 8
18 64 9 1 1 1 1 1 1 4 4 4
18 65 2 5 13
18 66 3 1 6 11
18 66 5 1 1 2 3 11
18 70 3 1 7 10
18 70 7 1 1 1 1 2 5 7
18 72 2 6 12
18 72 3 1 8 9
18 72 4 1 2 3 12
18 72 6 1 1 1 2 4 9
18 72 7 1 1 1 1 2 6 6
18 72 7 1 1 1 1 3 3 8
18 72 7 1 1 1 2 2 2 9
18 72 8 1 1 1 1 1 3 4 6
18 72 9 1 1 1 1 1 2 2 3 6
18 75 8 1 1 1 1 1 3 5 5
18 77 2 7 11
18 78 3 2 3 13
18 80 2 8 10
18 80 5 1 1 2 4 10
18 80 6 1 1 1 2 5 8
18 80 6 1 1 2 2 2 10
18 80 8 1 1 1 1 1 4 4 5
18 80 9 1 1 1 1 1 2 2 4 5
18 81 2 9 9
18 81 6 1 1 1 3 3 9
18 84 6 1 1 1 2 6 7
18 84 7 1 1 1 1 3 4 7
18 84 8 1 1 1 1 2 2 3 7
18 88 4 1 2 4 11
18 88 5 1 2 2 2 11
18 90 5 1 1 2 5 9
18 90 5 1 1 3 3 10
18 90 7 1 1 1 1 3 5 6
18 90 9 1 1 1 1 1 2 3 3 5
18 96 3 2 4 12
18 96 4 2 2 2 12
18 96 5 1 1 2 6 8
18 96 6 1 1 1 3 4 8
18 96 7 1 1 1 1 4 4 6
18 96 7 1 1 1 2 2 3 8
18 96 8 1 1 1 1 2 2 4 6
18 96 9 1 1 1 1 1 2 3 4 4
18 96 9 1 1 1 1 2 2 2 2 6
18 98 5 1 1 2 7 7
18 99 4 1 3 3 11
19 27 9 1 1 1 1 1 1 1 3 9
19 30 8 1 1 1 1 1 1 3 10
19 32 3 1 2 16
19 32 9 1 1 1 1 1 1 1 4 8
19 33 7 1 1 1 1 1 3 11
19 34 2 2 17
19 35 9 1 1 1 1 1 1 1 5 7
19 36 6 1 1 1 1 3 12
19 36 8 1 1 1 1 1 1 4 9
19 36 9 1 1 1 1 1 1 1 6 6
19 36 9 1 1 1 1 1 1 2 2 9
19 39 5 1 1 1 3 13
19 40 7 1 1 1 1 1 4 10
19 40 8 1 1 1 1 1 1 5 8
19 40 8 1 1 1 1 1 2 2 10
19 42 4 1 1 3 14
19 42 8 1 1 1 1 1 1 6 7
19 44 6 1 1 1 1 4 11
19 44 7 1 1 1 1 2 2 11
19 45 3 1 3 15
19 45 7 1 1 1 1 1 5 9
19 48 2 3 16
19 48 5 1 1 1 4 12
19 48 6 1 1 1 2 2 12
19 48 7 1 1 1 1 1 6 8
19 48 9 1 1 1 1 1 1 2 3 8
19 49 7 1 1 1 1 1 7 7
19 50 6 1 1 1 1 5 10
19 52 4 1 1 4 13
19 52 5 1 1 2 2 13
19 54 6 1 1 1 1 6 9
19 54 8 1 1 1 1 1 2 3 9
19 55 5 1 1 1 5 11
19 56 3 1 4 14
19 56 4 1 2 2 14
19 56 6 1 1 1 1 7 8
19 56 9 1 1 1 1 1 1 2 4 7
19 60 2 4 15
19 60 3 2 2 15
19 60 4 1 1 5 12
19 60 5 1 1 1 6 10
19 60 7 1 1 1 1 2 3 10
19 60 9 1 1 1 1 1 1 2 5 6
19 63 5 1 1 1 7 9
19 63 9 1 1 1 1 1 1 3 3 7
19 64 5 1 1 1 8 8
19 64 8 1 1 1 1 1 2 4 8
19 64 9 1 1 1 1 1 2 2 2 8
19 65 3 1 5 13
19 66 4 1 1 6 11
19 66 6 1 1 1 2 3 11
19 70 2 5 14
19 70 4 1 1 7 10
19 70 8 1 1 1 1 1 2 5 7
19 72 3 1 6 12
19 72 4 1 1 8 9
19 72 5 1 1 2 3 12
19 72 7 1 1 1 1 2 4 9
19 72 8 1 1 1 1 1 2 6 6
19 72 8 1 1 1 1 1 3 3 8
19 72 8 1 1 1 1 2 2 2 9
19 72 9 1 1 1 1 1 1 3 4 6
19 75 9 1 1 1 1 1 1 3 5 5
19 77 3 1 7 11
19 78 2 6 13
19 78 4 1 2 3 13
19 80 3 1 8 10
19 80 6 1 1 1 2 4 10
19 80 7 1 1 1 1 2 5 8
19 80 7 1 1 1 2 2 2 10
19 80 9 1 1 1 1 1 1 4 4 5
19 81 3 1 9 9
19 81 7 1 1 1 1 3 3 9
19 84 2 7 12
19 84 3 2 3 14
19 84 7 1 1 1 1 2 6 7
19 84 8 1 1 1 1 1 3 4 7
19 84 9 1 1 1 1 1 2 2 3 7
19 88 2 8 11
19 88 5 1 1 2 4 11
19 88 6 1 1 2 2 2 11
19 90 2 9 10
19 90 6 1 1 1 2 5 9
19 90 6 1 1 1 3 3 10
19 90 8 1 1 1 1 1 3 5 6
19 96 4 1 2 4 12
19 96 5 1 2 2 2 12
19 96 6 1 1 1 2 6 8
19 96 7 1 1 1 1 3 4 8
19 96 8 1 1 1 1 1 4 4 6
19 96 8 1 1 1 1 2 2 3 8
19 96 9 1 1 1 1 1 2 2 4 6
19 98 6 1 1 1 2 7 7
19 99 5 1 1 3 3 11
20 30 9 1 1 1 1 1 1 1 3 10
20 32 4 1 1 2 16
20 33 8 1 1 1 1 1 1 3 11
20 34 3 1 2 17
20 36 2 2 18
20 36 7 1 1 1 1 1 3 12
20 36 9 1 1 1 1 1 1 1 4 9
20 39 6 1 1 1 1 3 13
20 40 8 1 1 1 1 1 1 4 10
20 40 9 1 1 1 1 1 1 1 5 8
20 40 9 1 1 1 1 1 1 2 2 10
20 42 5 1 1 1 3 14
20 42 9 1 1 1 1 1 1 1 6 7
20 44 7 1 1 1 1 1 4 11
20 44 8 1 1 1 1 1 2 2 11
20 45 4 1 1 3 15
20 45 8 1 1 1 1 1 1 5 9
20 48 3 1 3 16
20 48 6 1 1 1 1 4 12
20 48 7 1 1 1 1 2 2 12
20 48 8 1 1 1 1 1 1 6 8
20 49 8 1 1 1 1 1 1 7 7
20 50 7 1 1 1 1 1 5 10
20 51 2 3 17
20 52 5 1 1 1 4 13
20 52 6 1 1 1 2 2 13
20 54 7 1 1 1 1 1 6 9
20 54 9 1 1 1 1 1 1 2 3 9
20 55 6 1 1 1 1 5 11
20 56 4 1 1 4 14
20 56 5 1 1 2 2 14
20 56 7 1 1 1 1 1 7 8
20 60 3 1 4 15
20 60 4 1 2 2 15
20 60 5 1 1 1 5 12
20 60 6 1 1 1 1 6 10
20 60 8 1 1 1 1 1 2 3 10
20 63 6 1 1 1 1 7 9
20 64 2 4 16
20 64 3 2 2 16
20 64 6 1 1 1 1 8 8
20 64 9 1 1 1 1 1 1 2 4 8
20 65 4 1 1 5 13
20 66 5 1 1 1 6 11
20 66 7 1 1 1 1 2 3 11
20 70 3 1 5 14
20 70 5 1 1 1 7 10
20 70 9 1 1 1 1 1 1 2 5 7
20 72 4 1 1 6 12
20 72 5 1 1 1 8 9
20 72 6 1 1 1 2 3 12
20 72 8 1 1 1 1 1 2 4 9
20 72 9 1 1 1 1 1 1 2 6 6
20 72 9 1 1 1 1 1 1 3 3 8
20 72 9 1 1 1 1 1 2 2 2 9
20 75 2 5 15
20 77 4 1 1 7 11
20 78 3 1 6 13
20 78 5 1 1 2 3 13
20 80 4 1 1 8 10
20 80 7 1 1 1 1 2 4 10
20 80 8 1 1 1 1 1 2 5 8
20 80 8 1 1 1 1 2 2 2 10
20 81 4 1 1 9 9
20 81 8 1 1 1 1 1 3 3 9
20 84 2 6 14
20 84 3 1 7 12
20 84 4 1 2 3 14
20 84 8 1 1 1 1 1 2 6 7
20 84 9 1 1 1 1 1 1 3 4 7
20 88 3 1 8 11
20 88 6 1 1 1 2 4 11
20 88 7 1 1 1 2 2 2 11
20 90 3 1 9 10
20 90 3 2 3 15
20 90 7 1 1 1 1 2 5 9
20 90 7 1 1 1 1 3 3 10
20 90 9 1 1 1 1 1 1 3 5 6
20 91 2 7 13
20 96 2 8 12
20 96 5 1 1 2 4 12
20 96 6 1 1 2 2 2 12
20 96 7 1 1 1 1 2 6 8
20 96 8 1 1 1 1 1 3 4 8
20 96 9 1 1 1 1 1 1 4 4 6
20 96 9 1 1 1 1 1 2 2 3 8
20 98 7 1 1 1 1 2 7 7
20 99 2 9 11
20 99 6 1 1 1 3 3 11
21 32 5 1 1 1 2 16
21 33 9 1 1 1 1 1 1 1 3 11
21 34 4 1 1 2 17
21 36 3 1 2 18
21 36 8 1 1 1 1 1 1 3 12
21 38 2 2 19
21 39 7 1 1 1 1 1 3 13
21 40 9 1 1 1 1 1 1 1 4 10
21 42 6 1 1 1 1 3 14
21 44 8 1 1 1 1 1 1 4 11
21 44 9 1 1 1 1 1 1 2 2 11
21 45 5 1 1 1 3 15
21 45 9 1 1 1 1 1 1 1 5 9
21 48 4 1 1 3 16
21 48 7 1 1 1 1 1 4 12
21 48 8 1 1 1 1 1 2 2 12
21 48 9 1 1 1 1 1 1 1 6 8
21 49 9 1 1 1 1 1 1 1 7 7
21 50 8 1 1 1 1 1 1 5 10
21 51 3 1 3 17
21 52 6 1 1 1 1 4 13
21 52 7 1 1 1 1 2 2 13
21 54 2 3 18
21 54 8 1 1 1 1 1 1 6 9
21 55 7 1 1 1 1 1 5 11
21 56 5 1 1 1 4 14
21 56 6 1 1 1 2 2 14
21 56 8 1 1 1 1 1 1 7 8
21 60 4 1 1 4 15
21 60 5 1 1 2 2 15
21 60 6 1 1 1 1 5 12
21 60 7 1 1 1 1 1 6 10
21 60 9 1 1 1 1 1 1 2 3 10
21 63 7 1 1 1 1 1 7 9
21 64 3 1 4 16
21 64 4 1 2 2 16
21 64 7 1 1 1 1 1 8 8
21 65 5 1 1 1 5 13
21 66 6 1 1 1 1 6 11
21 66 8 1 1 1 1 1 2 3 11
21 68 2 4 17
21 68 3 2 2 17
21 70 4 1 1 5 14
21 70 6 1 1 1 1 7 10
21 72 5 1 1 1 6 12
21 72 6 1 1 1 1 8 9
21 72 7 1 1 1 1 2 3 12
21 72 9 1 1 1 1 1 1 2 4 9
21 75 3 1 5 15
21 77 5 1 1 1 7 11
21 78 4 1 1 6 13
21 78 6 1 1 1 2 3 13
21 80 2 5 16
21 80 5 1 1 1 8 10
21 80 8 1 1 1 1 1 2 4 10
21 80 9 1 1 1 1 1 1 2 5 8
21 80 9 1 1 1 1 1 2 2 2 10
21 81 5 1 1 1 9 9
21 81 9 1 1 1 1 1 1 3 3 9
21 84 3 1 6 14
21 84 4 1 1 7 12
21 84 5 1 1 2 3 14
21 84 9 1 1 1 1 1 1 2 6 7
21 88 4 1 1 8 11
21 88 7 1 1 1 1 2 4 11
21 88 8 1 1 1 1 2 2 2 11
21 90 2 6 15
21 90 4 1 1 9 10
21 90 4 1 2 3 15
21 90 8 1 1 1 1 1 2 5 9
21 90 8 1 1 1 1 1 3 3 10
21 91 3 1 7 13
21 96 3 1 8 12
21 96 3 2 3 16
21 96 6 1 1 1 2 4 12
21 96 7 1 1 1 2 2 2 12
21 96 8 1 1 1 1 1 2 6 8
21 96 9 1 1 1 1 1 1 3 4 8
21 98 2 7 14
21 98 8 1 1 1 1 1 2 7 7
21 99 3 1 9 11
21 99 7 1 1 1 1 3 3 11
22 32 6 1 1 1 1 2 16
22 34 5 1 1 1 2 17
22 36 4 1 1 2 18
22 36 9 1 1 1 1 1 1 1 3 12
22 38 3 1 2 19
22 39 8 1 1 1 1 1 1 3 13
22 40 2 2 20
22 42 7 1 1 1 1 1 3 14
22 44 9 1 1 1 1 1 1 1 4 11
22 45 6 1 1 1 1 3 15
22 48 5 1 1 1 3 16
22 48 8 1 1 1 1 1 1 4 12
22 48 9 1 1 1 1 1 1 2 2 12
22 50 9 1 1 1 1 1 1 1 5 10
22 51 4 1 1 3 17
22 52 7 1 1 1 1 1 4 13
22 52 8 1 1 1 1 1 2 2 13
22 54 3 1 3 18
22 54 9 1 1 1 1 1 1 1 6 9
22 55 8 1 1 1 1 1 1 5 11
22 56 6 1 1 1 1 4 14
22 56 7 1 1 1 1 2 2 14
22 56 9 1 1 1 1 1 1 1 7 8
22 57 2 3 19
22 60 5 1 1 1 4 15
22 60 6 1 1 1 2 2 15
22 60 7 1 1 1 1 1 5 12
22 60 8 1 1 1 1 1 1 6 10
22 63 8 1 1 1 1 1 1 7 9
22 64 4 1 1 4 16
22 64 5 1 1 2 2 16
22 64 8 1 1 1 1 1 1 8 8
22 65 6 1 1 1 1 5 13
22 66 7 1 1 1 1 1 6 11
22 66 9 1 1 1 1 1 1 2 3 11
22 68 3 1 4 17
22 68 4 1 2 2 17
22 70 5 1 1 1 5 14
22 70 7 1 1 1 1 1 7 10
22 72 2 4 18
22 72 3 2 2 18
22 72 6 1 1 1 1 6 12
22 72 7 1 1 1 1 1 8 9
22 72 8 1 1 1 1 1 2 3 12
22 75 4 1 1 5 15
22 77 6 1 1 1 1 7 11
22 78 5 1 1 1 6 13
22 78 7 1 1 1 1 2 3 13
22 80 3 1 5 16
22 80 6 1 1 1 1 8 10
22 80 9 1 1 1 1 1 1 2 4 10
22 81 6 1 1 1 1 9 9
22 84 4 1 1 6 14
22 84 5 1 1 1 7 12
22 84 6 1 1 1 2 3 14
22 85 2 5 17
22 88 5 1 1 1 8 11
22 88 8 1 1 1 1 1 2 4 11
22 88 9 1 1 1 1 1 2 2 2 11
22 90 3 1 6 15
22 90 5 1 1 1 9 10
22 90 5 1 1 2 3 15
22 90 9 1 1 1 1 1 1 2 5 9
22 90 9 1 1 1 1 1 1 3 3 10
22 91 4 1 1 7 13
22 96 2 6 16
22 96 4 1 1 8 12
22 96 4 1 2 3 16
22 96 7 1 1 1 1 2 4 12
22 96 8 1 1 1 1 2 2 2 12
22 96 9 1 1 1 1 1 1 2 6 8
22 98 3 1 7 14
22 98 9 1 1 1 1 1 1 2 7 7
22 99 4 1 1 9 11
22 99 8 1 1 1 1 1 3 3 11
23 32 7 1 1 1 1 1 2 16
23 34 6 1 1 1 1 2 17
23 36 5 1 1 1 2 18
23 38 4 1 1 2 19
23 39 9 1 1 1 1 1 1 1 3 13
23 40 3 1 2 20
23 42 2 2 21
23 42 8 1 1 1 1 1 1 3 14
23 45 7 1 1 1 1 1 3 15
23 48 6 1 1 1 1 3 16
23 48 9 1 1 1 1 1 1 1 4 12
23 51 5 1 1 1 3 17
23 52 8 1 1 1 1 1 1 4 13
23 52 9 1 1 1 1 1 1 2 2 13
23 54 4 1 1 3 18
23 55 9 1 1 1 1 1 1 1 5 11
23 56 7 1 1 1 1 1 4 14
23 56 8 1 1 1 1 1 2 2 14
23 57 3 1 3 19
23 60 2 3 20
23 60 6 1 1 1 1 4 15
23 60 7 1 1 1 1 2 2 15
23 60 8 1 1 1 1 1 1 5 12
23 60 9 1 1 1 1 1 1 1 6 10
23 63 9 1 1 1 1 1 1 1 7 9
23 64 5 1 1 1 4 16
23 64 6 1 1 1 2 2 16
23 64 9 1 1 1 1 1 1 1 8 8
23 65 7 1 1 1 1 1 5 13
23 66 8 1 1 1 1 1 1 6 11
23 68 4 1 1 4 17
23 68 5 1 1 2 2 17
23 70 6 1 1 1 1 5 14
23 70 8 1 1 1 1 1 1 7 10
23 72 3 1 4 18
23 72 4 1 2 2 18
23 72 7 1 1 1 1 1 6 12
23 72 8 1 1 1 1 1 1 8 9
23 72 9 1 1 1 1 1 1 2 3 12
23 75 5 1 1 1 5 15
23 76 2 4 19
23 76 3 2 2 19
23 77 7 1 1 1 1 1 7 11
23 78 6 1 1 1 1 6 13
23 78 8 1 1 1 1 1 2 3 13
23 80 4 1 1 5 16
23 80 7 1 1 1 1 1 8 10
23 81 7 1 1 1 1 1 9 9
23 84 5 1 1 1 6 14
23 84 6 1 1 1 1 7 12
23 84 7 1 1 1 1 2 3 14
23 85 3 1 5 17
23 88 6 1 1 1 1 8 11
23 88 9 1 1 1 1 1 1 2 4 11
23 90 2 5 18
23 90 4 1 1 6 15
23 90 6 1 1 1 1 9 10
23 90 6 1 1 1 2 3 15
23 91 5 1 1 1 7 13
23 96 3 1 6 16
23 96 5 1 1 1 8 12
23 96 5 1 1 2 3 16
23 96 8 1 1 1 1 1 2 4 12
23 96 9 1 1 1 1 1 2 2 2 12
23 98 4 1 1 7 14
23 99 5 1 1 1 9 11
23 99 9 1 1 1 1 1 1 3 3 11
24 32 8 1 1 1 1 1 1 2 16
24 34 7 1 1 1 1 1 2 17
24 36 6 1 1 1 1 2 18
24 38 5 1 1 1 2 19
24 40 4 1 1 2 20
24 42 3 1 2 21
24 42 9 1 1 1 1 1 1 1 3 14
24 44 2 2 22
24 45 8 1 1 1 1 1 1 3 15
24 48 7 1 1 1 1 1 3 16
24 51 6 1 1 1 1 3 17
24 52 9 1 1 1 1 1 1 1 4 13
24 54 5 1 1 1 3 18
24 56 8 1 1 1 1 1 1 4 14
24 56 9 1 1 1 1 1 1 2 2 14
24 57 4 1 1 3 19
24 60 3 1 3 20
24 60 7 1 1 1 1 1 4 15
24 60 8 1 1 1 1 1 2 2 15
24 60 9 1 1 1 1 1 1 1 5 12
24 63 2 3 21
24 64 6 1 1 1 1 4 16
24 64 7 1 1 1 1 2 2 16
24 65 8 1 1 1 1 1 1 5 13
24 66 9 1 1 1 1 1 1 1 6 11
24 68 5 1 1 1 4 17
24 68 6 1 1 1 2 2 17
24 70 7 1 1 1 1 1 5 14
24 70 9 1 1 1 1 1 1 1 7 10
24 72 4 1 1 4 18
24 72 5 1 1 2 2 18
24 72 8 1 1 1 1 1 1 6 12
24 72 9 1 1 1 1 1 1 1 8 9
24 75 6 1 1 1 1 5 15
24 76 3 1 4 19
24 76 4 1 2 2 19
24 77 8 1 1 1 1 1 1 7 11
24 78 7 1 1 1 1 1 6 13
24 78 9 1 1 1 1 1 1 2 3 13
24 80 2 4 20
24 80 3 2 2 20
24 80 5 1 1 1 5 16
24 80 8 1 1 1 1 1 1 8 10
24 81 8 1 1 1 1 1 1 9 9
24 84 6 1 1 1 1 6 14
24 84 7 1 1 1 1 1 7 12
24 84 8 1 1 1 1 1 2 3 14
24 85 4 1 1 5 17
24 88 7 1 1 1 1 1 8 11
24 90 3 1 5 18
24 90 5 1 1 1 6 15
24 90 7 1 1 1 1 1 9 10
24 90 7 1 1 1 1 2 3 15
24 91 6 1 1 1 1 7 13
24 95 2 5 19
24 96 4 1 1 6 16
24 96 6 1 1 1 1 8 12
24 96 6 1 1 1 2 3 16
24 96 9 1 1 1 1 1 1 2 4 12
24 98 5 1 1 1 7 14
24 99 6 1 1 1 1 9 11
25 32 9 1 1 1 1 1 1 1 2 16
25 34 8 1 1 1 1 1 1 2 17
25 36 7 1 1 1 1 1 2 18
25 38 6 1 1 1 1 2 19
25 40 5 1 1 1 2 20
25 42 4 1 1 2 21
25 44 3 1 2 22
25 45 9 1 1 1 1 1 1 1 3 15
-- continued next comment --
Edited on October 30, 2015, 3:30 pm
|
|
Posted by Charlie
on 2015-10-30 15:26:16 |
re: computer aided solution -- continued
