C22212323232133313113313331333132313331323131232332133213221311   >>    C2221232323213331311331333133313231333132313123233213321322131   <<    C22212323232133313113313331333132313331323131232332133213221313   >>      C22212323232133313113313331333132313331323131232332133213221312   >>