C22212323232133313113313331333132313231333132311233123111232321   >>    C2221232323213331311331333133313231323133313231123312311123232   <<    C22212323232133313113313331333132313231333132311233123111232323   >>      C22212323232133313113313331333132313231333132311233123111232322   >>