abc0 +1abc+abc3+2abc=5709
1000a+100b+10c+1000+100a+10b+c+1000a+100b+10c+3+2000+100a+10b+c=
=5709
2200a+220b+22c+3003=5709
2200a+220b+22c=5709-3003
2200a+220b+22c=2706
1100a+110b+11c=1353
100a+10b+c=123
c=3
100a+10b=120
10a+b=12
b=2
a=1
abc este 123
verificare1230+1123+1233+2123=5709
