给你两个数a和b,你的任务是计算出1在a和b之间出现的次数,比如说，如果a=1024,b=1032，那么a和b之间的数就是：

1024 1025 1026 1027 1028 1029 1030 1031 1032

则有10个1出现在这些数中。

-Give you two numbers a and b, your task is to calculate a and b in a number of times between, for example, if a = 1024, b = 1032, then a and b between the number is: 10241025 1026 1027 1,028,102,910,301,031 1032 10 1 appeared in several of these.