C1111133313331323223313331333133313113313231331121111121111133313131122231211   >>    C111113331333132322331333133313331311331323133112111112111113331313112223121   <<    C1111133313331323223313331333133313113313231331121111121111133313131122231213   >>      C1111133313331323223313331333133313113313231331121111121111133313131122231212   >>