Substitute each of the capital letters by a different digit from 0 to 9, such that each of the columns, each of the rows and each of the two main diagonals of this 3x3 grid have the common sum LRK. It is known that L is nonzero and, none of the numbers in the nine cells contains a leading zero.
CL RO OR
EK HS AA
KE KB SH
Note: LRK is equal to 100*L + 10*R + K.