C1111133313331323223313331333133313113313231333132212111133213321   >>    C111113331333132322331333133313331311331323133313221211113321332   <<    C1111133313331323223313331333133313113313231333132212111133213323   >>      C1111133313331323223313331333133313113313231333132212111133213322   >>