C222133313331333131123313231333133313331313113313331333132313112332211   >>    C22213331333133313112331323133313331333131311331333133313231311233221   <<    C222133313331333131123313231333133313331313113313331333132313112332213   >>      C222133313331333131123313231333133313331313113313331333132313112332212   >>