C22212323232133313113313331333132313331323222223233232212323131   >>    C2221232323213331311331333133313231333132322222323323221232313   <<    C22212323232133313113313331333132313331323222223233232212323133   >>      C22212323232133313113313331333132313331323222223233232212323132   >>