Positive numbers: 1,12,123,1234,12345,123456,1234567,12345678,123456789,1234567890 12345678901,123456789012,1234567890123,12345678901234,123456789012345 1234567890123456,12345678901234568,123456789012345680 Negative numbers: -1,-12,-123,-1234,-12345,-123456,-1234567,-12345678,-123456789,-1234567890 -12345678901,-123456789012,-1234567890123,-12345678901234,-123456789012345 -1234567890123456,-12345678901234568,-123456789012345680