C22212323232133313113313331333132313331323132213231312121212321132311   >>    C2221232323213331311331333133313231333132313221323131212121232113231   <<    C22212323232133313113313331333132313331323132213231312121212321132313   >>      C22212323232133313113313331333132313331323132213231312121212321132312   >>