Question 41859
S MUST BE  A 0 OR A 1 IN THE ANSWER.

N+N=M 1+1=2 & 3+3=6 & 6+6=12 ARE THE ONLY POSSIBILITIES FOR N&M.

U+U=I OR U+U+1 (CARRY IF N=6)

THE ONLY COMBINATION I CAN FIND IS 136+936=1072