O+N+E = 1
T+W+O = 2
T+H+R+E+E = 3
F+O+U+R = 4
F+I+V+E = 5
S+I+X = 6
S+E+V+E+N = 7
E+I+G+H+T = 8
N+I+N+E = 9
T+E+N = 10
E+L+E+V+E+N =11
T+W+E+L+V+E = 12
Solve the above system of alphametics, allowing non-zero integers, whose absolute value does not exceed 11.
Rem 1: The source will be disclosed with the official solution.
Rem 2: An analytical solution (d4) will be applauded!
Better late than never!
