func_code_string: #include <bits/stdc++.h>   const long long N = 2e5 + 5, MOD = 1e9 + 7;   using namespace std;   int dx[] = {-1, -1, 0, 1, 1, 1, 0, -1};   int dy[] = {0, 1, 1, 1, 0, -1, -1, -1};   long long n, m, a[N], cnt, ans;   string s;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     cin >> n >> m;     for (int i = 1; i <= n; ++i) cin >> a[i], a[i] += a[i - 1];     for (long long i = 1, x; i <= m; i++) {       cin >> x;       long long lb = lower_bound(a + 1, a + n + 1, x) - a;       cout << lb <<     << x - a[lb - 1] << endl;     }     return 0;   }   