#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(v) v.begin(),v.end()
typedef long long ll;
 
#include<bits/stdc++.h>
using namespace std;

ll dp[100100][7];
const int MOD=1e9+7;

ll A[]={1,3,2,6,4,5};
ll B[]={0,1,4,6,5,2};

int main(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
 
  int k;
  cin>>k;
  vector<ll> D(k),L(k);
  rep(i,k) cin>>D[i]>>L[i];
  dp[0][0]=1;
  for(int i=0;i<k;i++){
    for(int j=0;j<7;j++){
      ll t=(j*A[L[i]%6]+D[i]*B[L[i]%6])%7;
      dp[i+1][t]=(dp[i+1][t]+dp[i][j])%MOD;
      dp[i+1][j]=(dp[i+1][j]+dp[i][j])%MOD;
    }
  }
  ll ans=0;
  rep(i,7) ans=(ans+dp[k][i]*i%MOD)%MOD;
  cout<<ans<<endl;

  return 0;
}