C1111233133313231133133313331333133313231312111133133313113311323321   >>    C111123313331323113313331333133313331323131211113313331311331132332   <<    C1111233133313231133133313331333133313231312111133133313113311323323   >>      C1111233133313231133133313331333133313231312111133133313113311323322   >>