C11111333133313232233133313331333132332313112113313331323221211113321221   >>    C1111133313331323223313331333133313233231311211331333132322121111332122   <<    C11111333133313232233133313331333132332313112113313331323221211113321223   >>      C11111333133313232233133313331333132332313112113313331323221211113321222   >>