Условие:

23000 + 25;
18000 + 350;
37000 + 480;
70507000;
60806000;
80908040;
6987580070;
435464000040;
9364830008.

23000 + 25 = 23025;
18000 + 350 = 18350;
37000 + 480 = 37480;
70507000 = 50;
60806000 = 80;
80908040 = 50;
6987580070 = 6907570 = 69005;
435464000040 = 354640 = 3506;
9364830008 = 906488 = 90640.