#include"stdio.h"
int weishu(int number)
{
int i=1;
while(number=number/10)
i++;
return i;
}
int main(void)
{
int number;
int n;
printf("This program can output the weishu of number\n");
scanf("%d",&number);
n=weishu(number);
printf("%d",n);
return 0;
}