The length, width, and height of the cuboid are 4 decimeters, 3 decimeters, and 2 decimeters respectively. Cut 5 vertical cuts along the long side, 4 vertical cuts along the wide side, and n horizontal cuts along the high side. The surface area of several cuboids obtained The sum of is 224 square decimeters, then what is n equal to?
长方体的长，宽，高分别是4分米，3分米，2分米，沿长边垂直切5刀，沿宽边垂直切4刀，沿高边水平切n刀，所得若干个长方体表面积的和是224平方分米，则n等于多少．
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