import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
/*
Минимальный байт
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String string = reader.readLine();
FileInputStream fileInputStream = new FileInputStream(string);
byte min = Byte.MIN_VALUE;
while (fileInputStream.available() > 0) {
int data = fileInputStream.read();
if (data <= min) {
min = (byte) data;
}
}
fileInputStream.close();
System.out.println(min);
}
}
package com.javarush.task.task18.task1802;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
/*
Минимальный байт
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String string = reader.readLine();
FileInputStream fileInputStream = new FileInputStream(string);
byte min = Byte.MIN_VALUE;
while (fileInputStream.available() > 0) {
int data = fileInputStream.read();
if (data <= min) {
min = (byte) data;
}
}
fileInputStream.close();
System.out.println(min);
}
}