import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
//		long s = System.currentTimeMillis();
		Main p = new Main();
//		long e = System.currentTimeMillis();
//		System.out.println((e-s)/1000.0);
	}

	public Main() {
		Scanner sc = new Scanner(System.in);
		int l = sc.nextInt();
		int m = sc.nextInt();
		int n = sc.nextInt();
		solve(l, m, n);
	}

	public void solve(int l, int m, int n) {
		final int MAX = 100*1000+25*1000+1*1000;
		int[] dp = new int[MAX+1];
		Arrays.fill(dp, 1000000);
		int y = 0;
		int hy = 0;
		int ty = 0;
		int oy = 0;
		for(int i=0;i<=1000;i++){
			ty = hy;
			for(int j=0;j<=1000;j++){
				oy = ty;
				for(int k=0;k<=1000;k++){
//					dp[oy] = Math.min(dp[oy], i+j+k);
					dp[oy] = dp[oy] > i+j+k ? i+j+k : dp[oy];
					oy += 1;
				}
				
				ty+= 25;
			}
			hy+= 100;
			
		}
		
		int res = 1000000;
		for(int i=(l*100+m*25+n)%1000; i<=MAX;i+=1000 )
			res =Math.min(res, dp[i]);
		
		
		System.out.println(res);
	}

}