[10,11,21,101,121,201,221,301,321,421,1001,1101,
1121,1201,1221,1321,1421,2001,2101,2121,2201,2301,
2321,2421,3101,3121,3201,3221,3301,3321,4101,4121,
4221,4301,4421,5001,5101,5201,5221,5321,5421,6001,
6121,6201,6221,6301,10001,10201,10221,10301,10321,
10421,11001,11121,11221]
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