#include <stdio.h>
#include <stdlib.h>
int main(void)
{
    char a[100];
    char tmp;
    int len, i;
    while (1)
    {
        scanf("%s", a);
        
        len = strlen(a);

        printf("输入的字符串为：%s\n长度为：%d\n", a,len);
        for (i = 0; i < len-1-i;i++)
        {
            tmp = a[i];
            a[i] = a[len - 1 - i];
            a[len - 1 - i] = tmp;
        }
        printf("交换后的字符串：%s\n长度为：%d\n", a, len);
    }
    system("pause");
    return 0;
}