I----------------I---------------------I---------------I
a + b + c = 8289
///////////////////////////////////////
a + b = 4001 atunci c = 8289 - 4001 = 4288
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
b + c = 5099
atunci a = 8289 - 5099 = 3190
b = 5099 - c = 5099 - 4288 = 811
numerele : 3190 ; 811 ; 4288