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

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int N,Q; cin >> N >> Q;
    vector<int> ones,add(N);
    for(int i=0; i<N; i++){
        int a; cin >> a;
        if(a == 0) continue;
        if(a == 9) add.at(i)++;
        else ones.push_back(i);
    }
    int n = ones.size();
    vector<int> S1 = ones;
    for(int i=1; i<n; i++) S1.at(i) += S1.at(i-1);
    for(int i=1; i<N; i++) add.at(i) += add.at(i-1);

    while(Q--){
        int l,r; cin >> l >> r;
        l--; r--;
        int answer = add.at(r);
        if(l) answer -= add.at(l-1);
        
        int l1 = 0,r1 = 0;
        for(int i=0; i<n; i++){
            if(l > ones.at(i)) l1++;
            if(r >= ones.at(i)) r1++; 
        }
        if(l1 < r1){
            l1--; r1--;
            answer += (r-l+1)*(r1-l1);
            answer -= S1.at(r1)+(r1-l1)-l*(r1-l1);
            if(l1 >= 0) answer += S1.at(l1);
        }
        cout << answer << "\n";
    }
}