C11111333133313232233133313331333133313231312111133132212111221   >>    C1111133313331323223313331333133313331323131211113313221211122   <<    C11111333133313232233133313331333133313231312111133132212111223   >>      C11111333133313232233133313331333133313231312111133132212111222   >>