There is a wire with a length of 58 meters. Now it is necessary to divide it into two specifications of 9 meters and 4 meters each. There is no surplus. How many ways are there to divide it?
有一根长58米的电线，现在要把它分割成每根长9米和4米的两种规格，恰好没有剩余，所有的分割方法有多少种．
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