C11111333133313232233133313331333133112111112113313121111111231   >>    C1111133313331323223313331333133313311211111211331312111111123   <<    C11111333133313232233133313331333133112111112113313121111111233   >>      C11111333133313232233133313331333133112111112113313121111111232   >>