C22212323232133313113313331333132313331323132213231312112132311   >>    C2221232323213331311331333133313231333132313221323131211213231   <<    C22212323232133313113313331333132313331323132213231312112132313   >>      C22212323232133313113313331333132313331323132213231312112132312   >>