using System;
class Program
{
static int getTheLowestDigit(int n) {
int min = 9;
while(n != 0) {
if (n % 10 < min) min = n % 10;
n /= 10;
}
return min;
}
static void Main() {
int n = 213;
Console.WriteLine(getTheLowestDigit(n));
n = 76594;
Console.WriteLine(getTheLowestDigit(n));
n = 76529;
Console.WriteLine(getTheLowestDigit(n));
}
}
/*
run:
1
4
2
*/