C22212323232133313113313331333132313331323132213231312121213111321   >>    C2221232323213331311331333133313231333132313221323131212121311132   <<    C22212323232133313113313331333132313331323132213231312121213111323   >>      C22212323232133313113313331333132313331323132213231312121213111322   >>