13579 - 12345 = 1234
123456789 - 12345 = 123444444
987654321 - 12345678 = 975308643
K nha
13579-12345=1234
123456789-12345=123444444
987654321-12345678=975308643
13579-12345=1234
123456789-12345=123444444
987654321-12345678=975308643
13579-12345=1234
123456789-12345=123444444
987654321-12345678=975308643
13579-12345=1234
123456789-123456=123444444
987654321-12345678=975308643