C111113331333132322331333133313331331121111121133133313113313133123313231312311   >>    C11111333133313232233133313331333133112111112113313331311331313312331323131231   <<    C111113331333132322331333133313331331121111121133133313113313133123313231312313   >>      C111113331333132322331333133313331331121111121133133313113313133123313231312312   >>