简单！（用桶）

#include <bits/stdc++.h>
using namespace std;

int a[222];// 桶
int in[222];// 收入
int out[222];// 支出

int main(){

    int n;
    cin >> n;
    for (int i = 1;i <= n;i++){
        cin >> in[i];
    }
    for (int i = 1;i <= n;i++){
        cin >> out[i];
    }

    for (int i = 1;i <= n;i++){
        a[(in[i] - out[i]) + 100]++;
    }

    for (int i = 0;i <= 200;i++){
        if (a[i] != 0){
            cout << i - 100 << " " << a[i] << endl;
        }
    } 
    
    return 0;
}