C22213331333133313112331323133313331333133313211232313331211111232211   >>    C2221333133313331311233132313331333133313331321123231333121111123221   <<    C22213331333133313112331323133313331333133313211232313331211111232213   >>      C22213331333133313112331323133313331333133313211232313331211111232212   >>