C22212323232133313113313331333132313331323133313333221232211133322321   >>    C2221232323213331311331333133313231333132313331333322123221113332232   <<    C22212323232133313113313331333132313331323133313333221232211133322323   >>      C22212323232133313113313331333132313331323133313333221232211133322322   >>