111a+111b+111c=1110a
impartim relatia prin111
a+b+c=10a
b+c=9a
pt a=1 b+c=9 b=1...c=8
b=2....c=7
............................................
b=8....c=1
pt a=2 , b+c=18 singura soltie b=c=9
verificare pt a=1
111+111+888=1110
111+222+777=1110
111+333+666=1110
......................................
111+888+111=1110
Verificare, pt b=2
222+999+999=2220
adevarate toate, bine rezolvat
