C22212323232133313113313331333132313231333132311233123112131323111   >>    C2221232323213331311331333133313231323133313231123312311213132311   <<    C22212323232133313113313331333132313231333132311233123112131323113   >>      C22212323232133313113313331333132313231333132311233123112131323112   >>