#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdbool.h>

int main()
{

int digit;
long n;

while (true) {
    bool digit_seen[10] = { false }, flag = false;
    printf("Enter a number: ");
    scanf("%ld", &n);
    int l=1;

    if (n <= 0) {
        break;
    }
    while(n>0) {
        digit = n % 10;
        if (digit_seen[digit]) {
            l = 0;
        }digit_seen[digit] = true;
        n /= 10;
    } 

    if (l==0) {
        printf("Repeated digit\n");
    }
    else {
        printf("No Repeated digit\n");
    }
}
return 0;

}