#include <stdio.h>
#include <conio.h>

int main(int argc, char *argv[])
{
    int n, min;

    printf("Enter number..\n");
    scanf("%d", &n);

    min = n % 10;

    while(n /= 10)
        if(n % 10 < min)
            min = n % 10;

    printf("\n%d\n", min);

    getch();
    return 0;
}