C11111333133313232233133313331333133313231312111133132231311231   >>    C1111133313331323223313331333133313331323131211113313223131123   <<    C11111333133313232233133313331333133313231312111133132231311233   >>      C11111333133313232233133313331333133313231312111133132231311232   >>