#include <iostream>
#include <vector>
using namespace std;
#define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++)
#define REP(i, n) FOR(i,0,n)


int main() {
    cin.tie(nullptr), ios::sync_with_stdio(false);
    int N, Q;
    cin >> N >> Q;

    vector<int> A(N);
    for (int &a : A) cin >> a;

    vector<int> sum9(N + 1);
    REP(i, N) sum9[i + 1] = sum9[i] + (A[i] == 9);

    vector<int> ones;
    REP(i, N) if (A[i] == 1) ones.push_back(i);

    while (Q--) {
        int l, r;
        cin >> l >> r;
        --l;

        int ret = sum9.at(r) - sum9.at(l);
        for (int i : ones) {
            if (l <= i and i < r) ret += r - 1 - i;
        }
        cout << ret << '\n';
    }
}