#include <bits/stdc++.h>
using namespace std;
const long long MOD = 1000000007;
array<array<long long, 3>, 3> matmul(array<array<long long, 3>, 3> &A, array<array<long long, 3>, 3> &B){
  array<array<long long, 3>, 3> ans;
  for (int i = 0; i < 3; i++){
    for (int j = 0; j < 3; j++){
      ans[i][j] = 0;
    }
  }
  for (int i = 0; i < 3; i++){
    for (int k = 0; k < 3; k++){
      for (int j = 0; j < 3; j++){
        ans[i][k] += A[i][j] * B[j][k];
      }
      ans[i][k] %= MOD;
    }
  }
  return ans;
}
array<array<long long, 3>, 3> matexp(array<array<long long, 3>, 3> &A, long long b){
  array<array<long long, 3>, 3> ans;
  for (int i = 0; i < 3; i++){
    for (int j = 0; j < 3; j++){
      ans[i][j] = i == j;
    }
  }
  while (b > 0){
    if (b % 2 == 1){
      ans = matmul(ans, A);
    }
    A = matmul(A, A);
    b /= 2;
  }
  return ans;
}
long long get(vector<int> &A, int M, int a, int b){
  array<array<long long, 3>, 3> mat;
  mat[0][0] = A[a - 1] - 1;
  mat[0][1] = 1;
  mat[0][2] = 0;
  mat[1][0] = 0;
  mat[1][1] = A[b - 1] - 1;
  mat[1][2] = 1;
  mat[2][0] = 0;
  mat[2][1] = 0;
  mat[2][2] = A.back() - 1;
  mat = matexp(mat, M - 1);
  return mat[0][2];
}
int main(){
  int N, M;
  cin >> N >> M;
  vector<int> A(N, 0);
  for (int i = 1; i < N; i++){
    cin >> A[i];
  }
  long long ans = 0;
  vector<vector<int>> prev(N + 1);
  for (int a = 2; a < N; a++){
    if (N % a == 0){
      for (int b = a * 2; b < N; b += a){
        prev[b].push_back(a);
        if (N % b == 0){
          ans += get(A, M, a, b);
          if (ans >= MOD){
            ans -= MOD;
          }
        }
      }
    }
  }
  cout << ans << endl;
  int Q;
  cin >> Q;
  set<int> st;
  for (int i = 0; i < Q; i++){
    int X, Y;
    cin >> X >> Y;
    if (Y == N){
      for (int a : prev[X]){
        ans += get(A, M, a, X);
        if (ans >= MOD){
          ans -= MOD;
        }
      }
      st.insert(X);
    } else {
      if (st.count(Y)){
        ans += get(A, M, X, Y);
        if (ans >= MOD){
          ans -= MOD;
        }
      }
    }
    prev[Y].push_back(X);
    cout << ans << endl;
  }
}