编写程序，提示用户输入两个数并将这两个数范围内的每个数写到标准输出。
Write a program that prompts the user for two Numbers and writes each number in the range specified by the two Numbers to the standard output.
在本示例中，适配器将输入文件拆分为两个数据块，分别对应着两个记录。
In this case, the adapter splits the input file into two chunks corresponding to two records.
它接收两个输入变量，并返回这两个数值的差。
It takes two input variables and returns the difference of those two Numbers.
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