C22212323232133313113313331333133313231323222223233211111333131   >>    C2221232323213331311331333133313331323132322222323321111133313   <<    C22212323232133313113313331333133313231323222223233211111333133   >>      C22212323232133313113313331333133313231323222223233211111333132   >>