C111123313331323113313331331121111331323132322333121111133313113313123311211321   >>    C11112331333132311331333133112111133132313232233312111113331311331312331121132   <<    C111123313331323113313331331121111331323132322333121111133313113313123311211323   >>      C111123313331323113313331331121111331323132322333121111133313113313123311211322   >>