172001 contains 1201211212012112212312412512612712812912a12b12c12d12e12f212312412512612712812912a12b12c12d12e12f12 contains 2002012020020120220320420520620720820920a20b20c20d20e20f220320420520620720820920a20b20c20d20e20f20 contains 1001010010110210310410510610710810910a10b10c10d10e10f110210310410510610710810910a10b10c10d10e10f10
contains 1201211212012112212312412512612712812912a12b12c12d12e12f212312412512612712812912a12b12c12d12e12f12
contains 2002012020020120220320420520620720820920a20b20c20d20e20f220320420520620720820920a20b20c20d20e20f20
contains 1001010010110210310410510610710810910a10b10c10d10e10f110210310410510610710810910a10b10c10d10e10f10