10, 23, 32, 565, 656, 989, 1212, 2121, 3456, 4545, 5454, 6543, 6789, 7878, 8787, 9876, 10121, 12101, 12123, 12321, 21012, 21210, 23454, 32121, 34545, 43454, 45432, 45434, 45678, 54345, 54543, 67878, 76767, 87654, 87678, 87876, 101012, 101210, 101232, 101234, 121010, 121232, 123210, 123212, 123232, 123456, 210101, 210123, 212123, 212321, 212323, 232101, 232121, 232123, 232321, 234345, 234543, 234567, 321012, 321210, 321212, 321232, 323212, 323454, 343454, 345432, 345434, 432101, 432345, 434345, 434543, 454323, 454343, 454567, 456787, 543234, 543432, 543434, 567898, 654321, 656789, 765432, 765454, 787654, 898765, 987656, 1012323, 1212323, 1212343, 1232123, 1232321, 1232345, 1234321, 2101010, 2101232, 2121212, 2123210, 2321010, 2321012, 2321210, 2323210, 2323456, 2343434, 2345678, 3210123, 3212123, 3212321, 3212345, 3232101, 3232121, 3432121, 3434345, 3434543, 3454343, 3454567, 3456789, 4321010, 4323434, 4343234, 4343432, 4343434, 4545454, 4545676, 4567654, 5432123, 5432321, 5434343, 5434567, 5454567, 5456565, 5456767, 5654565, 5656545, 5656565, 5676767, 5678789, 5678987, 6543210, 6543232, 6565656, 6765454, 6767676, 6767678, 6767876, 6767898, 6787676, 6789876, 7654345, 7654543, 7654545, 7654567, 7656767, 7676545, 7676567, 7676765, 7678789, 7678987, 7876789, 7898765, 7898767, 8765432, 8767676, 8987676, 9876543, 9876787, 9878765, 9878767.