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2014-10-05T19:53:44+03:00
A - b = 1113
a : b = 7 rest 63
a = 7b + 63
7b + 63 - b = 1113
6b = 1050
b = 1050 : 6
b = 175
a = 1113 - 175 
a = 938
3 4 3