C22212323232133313113313331333132313231333132313222131122211331   >>    C2221232323213331311331333133313231323133313231322213112221133   <<    C22212323232133313113313331333132313231333132313222131122211333   >>      C22212323232133313113313331333132313231333132313222131122211332   >>