C22212323232133313113313331333132313231333132311233123311323312331   >>    C2221232323213331311331333133313231323133313231123312331132331233   <<    C22212323232133313113313331333132313231333132311233123311323312333   >>      C22212323232133313113313331333132313231333132311233123311323312332   >>