C111123313331323113313331333133313331323131211113311211331323113231   >>    C11112331333132311331333133313331333132313121111331121133132311323   <<    C111123313331323113313331333133313331323131211113311211331323113233   >>      C111123313331323113313331333133313331323131211113311211331323113232   >>