const input = require('fs').readFileSync('/dev/stdin').toString().trim();
const input = require('fs').readFileSync('/dev/stdin').toString().trim().split(' ');
const input = require('fs').readFileSync('/dev/stdin').toString().trim().split('\n');
const [n, ...arr] = require('fs').readFileSync('/dev/stdin').toString().trim().split(/\s/);
const [n, ...arr] = require('fs').readFileSync('/dev/stdin').toString().trim().split('\n');
const input = require('fs').readFileSync('/dev/stdin').toString().trim().split(/\s/);
const n = input[0];
const n_arr = input.slice(1, n+1);
const [m, ...m_arr] = input.slice(n+1);