#include
int main()
{
int r,temp,num,sum=0;
    printf("the given number: ");
    scanf("%d" ,&num);
    temp=num;
    while(temp!=0)
    {
       r=temp%10;
       sum=sum*10+r;
        temp=temp/10;
    }
printf("reverse number:%d\n",sum);
}