I need help with this code please

Mary has an n m piece of paper that she wants to cut into 1 1 pieces according to the following rules: . She can only cut one piece of paper at a time, meaning she cannot fold the paper or layer already-cut pieces on top of one another . Each cut is a straight line from one side of the paper to the other side of the paper. For example, the diagram below depicts the three possible ways to cut a 3 2 piece of paper A3 x 2 Paper Option 1 Option 2 Option 3