C11111333133313232233133313331333133112111112113313231333132323131313111   >>    C1111133313331323223313331333133313311211111211331323133313232313131311   <<    C11111333133313232233133313331333133112111112113313231333132323131313113   >>      C11111333133313232233133313331333133112111112113313231333132323131313112   >>