C11111333133313232233133313331333133313232233312111133132321333131   >>    C1111133313331323223313331333133313331323223331211113313232133313   <<    C11111333133313232233133313331333133313232233312111133132321333133   >>      C11111333133313232233133313331333133313232233312111133132321333132   >>