I have 11 shirts, but only four hangers. In how many ways can I choose four of the shirts to hang in which the arrangement of the shirts in my closet makes a difference to me?

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The Answer of I have 11 shirts, but only four hangers. In how many ways can I choose four of the shirts to hang in which the arrangement of the shirts in my closet makes a difference to me?

I Have 11 Shirts, but Only Four Hangers