Program to find the sum of digits of 3 digits number in C-language

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#include<stdio.h>
int main()
{
    int a,b,c,x,s;
    printf("Enter three digit numbers\n");
    scanf("%d",&x);
    a=x%10;
    x=x/10;
    b=x%10;
    x=x/10;
    c=x%10;
    x=x/10;
    s=a+b+c;
    printf("Sum of digit=%d",s);
}

OUTPUT
Enter three numbers
456
Sum of digit=15

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