public class Solution {
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        int n1 = Integer.parseInt(reader.readLine());
        int n2 = Integer.parseInt(reader.readLine());
        int n3 = Integer.parseInt(reader.readLine());
        int n4 = Integer.parseInt(reader.readLine());
        int n5 = Integer.parseInt(reader.readLine());
if (n1 < n2) {
    System.out.println(n1);
}
else if (n2 > n1) {
System.out.println(n2);
}
else if (n1 < n3) {
System.out.println(n3);}
else if (n3 < n4) {
System.out.println(n4);}
else if (n5 > n4) {
System.out.println(n5);}

    }
}