C22213331333133313112331323133313331333133313211232313331211111232322121121   >>    C2221333133313331311233132313331333133313331321123231333121111123232212112   <<    C22213331333133313112331323133313331333133313211232313331211111232322121123   >>      C22213331333133313112331323133313331333133313211232313331211111232322121122   >>