Program to reverse four digits number in C-language

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#include<stdio.h>
int main()
{
    int a,b,c,d,x,m,rev;
    printf("Enter four digit numbers\n");
    scanf("%d",&x);
    m=x;
    a=x%10;
    x=x/10;
    b=x%10;
    x=x/10;
    c=x%10;
    x=x/10;
    d=x%10;
    x=x/10;
    rev=a*1000+b*100+c*10+d;
    printf("Reverse of digit %d is=%d",m,rev);
}

OUTPUT
Enter four digit numbers
6789
Reverse of digit 6789 is=9876

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