C222133313331333131123313231333133313331333132112323133313231333131111232121   >>    C22213331333133313112331323133313331333133313211232313331323133313111123212   <<    C222133313331333131123313231333133313331333132112323133313231333131111232123   >>      C222133313331333131123313231333133313331333132112323133313231333131111232122   >>