C22212323232133313113313331333133313231323133313332311333132223231331   >>    C2221232323213331311331333133313331323132313331333231133313222323133   <<    C22212323232133313113313331333133313231323133313332311333132223231333   >>      C22212323232133313113313331333133313231323133313332311333132223231332   >>