C132233133112121111331333133313231333133313231323221211111232311211   >>    C13223313311212111133133313331323133313331323132322121111123231121   <<    C132233133112121111331333133313231333133313231323221211111232311213   >>      C132233133112121111331333133313231333133313231323221211111232311212   >>