C22212323232133313113313331333132313331323132213231312131121222321   >>    C2221232323213331311331333133313231333132313221323131213112122232   <<    C22212323232133313113313331333132313331323132213231312131121222323   >>      C22212323232133313113313331333132313331323132213231312131121222322   >>