C11111333133313232233133313331333133112111112113313331312111112131311   >>    C1111133313331323223313331333133313311211111211331333131211111213131   <<    C11111333133313232233133313331333133112111112113313331312111112131313   >>      C11111333133313232233133313331333133112111112113313331312111112131312   >>