【Codeforces 1114A】Got Any Grapes?

【链接】 我是链接,点我呀:)
【题意】

【题解】

【代码】

import java.io.*;
import java.util.*;

public class Main {
	
	static int N = (int)1e6;
	static InputReader in;
	static PrintWriter out;
		
	public static void main(String[] args) throws IOException{
		//InputStream ins = new FileInputStream("E:\\rush.txt");
		InputStream ins = System.in;
		in = new InputReader(ins);
		out = new PrintWriter(System.out);
		//code start from here
		new Task().solve(in, out);
		out.close();
	}
	
	static class Task{
		public void solve(InputReader in,PrintWriter out) {
			int x,y,z;
			int a,b,c;
			x = in.nextInt();y = in.nextInt();z = in.nextInt();
			a = in.nextInt();b = in.nextInt();c = in.nextInt();
			if (x>a) {
				out.println("NO");
				return;
			}
			//x<=a;
			a-=x;
			if (y>a+b) {
				out.println("NO");
				return;
			}
			//y<=a+b
			if (z>a+b+c-y) {
				out.println("NO");
				return;
			}
			out.println("YES");
		
		}
	}

	

	static class InputReader{
		public BufferedReader br;
		public StringTokenizer tokenizer;
		
		public InputReader(InputStream ins) {
			br = new BufferedReader(new InputStreamReader(ins));
			tokenizer = null;
		}
		
		public String next(){
			while (tokenizer==null || !tokenizer.hasMoreTokens()) {
				try {
				tokenizer = new StringTokenizer(br.readLine());
				}catch(IOException e) {
					throw new RuntimeException(e);
				}
			}
			return tokenizer.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
	}
}