C22212323232133313113313331333132313231333132311233123311232111113111   >>    C2221232323213331311331333133313231323133313231123312331123211111311   <<    C22212323232133313113313331333132313231333132311233123311232111113113   >>      C22212323232133313113313331333132313231333132311233123311232111113112   >>