#include "stdlib.h"
#include<stdio.h>
#include "math.h"
int main()
{   
    int a;
    int buf[10];
    int i = 0,length=0,j;
    int num=0;
    int pow = 1;
    printf("请输入一个数字\n");
    scanf("%d",&a);
    printf("你输入的数字为:%d\n",a);
    while (a!=0)
    {
        buf[i] = a % 10;
        i++;
        a /= 10;    
    }
    length = i;
    for (i=0; i < length-1; i++)
        if (buf[i] != 0)
            break;
    for (j = length -1; j >= i; j--)
    {
        num += buf[j] * pow;
        pow *= 10;
    }
    printf("倒置后的数字为%d\n",num);
    return 0;
}