PairSum 9. All combos
555,557,559,577,777,246,247,256,266,267,778,333,335,377,666,668,147,155,156,157,158,167,177,669,679,689,123,149,159,337,339,347,348,349,357,359,367,368,446,448,456,457,458,459,244,056,058,066,067,068,014,023,033,034,238,239,248,258,259,268,444,466,468,355,356
