C22212323232133313113313331333133313231323231311211213211112131   >>    C2221232323213331311331333133313331323132323131121121321111213   <<    C22212323232133313113313331333133313231323231311211213211112133   >>      C22212323232133313113313331333133313231323231311211213211112132   >>