C11111333133313232233133313331333133313232233312111133132222131231   >>    C1111133313331323223313331333133313331323223331211113313222213123   <<    C11111333133313232233133313331333133313232233312111133132222131233   >>      C11111333133313232233133313331333133313232233312111133132222131232   >>