#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define R cin>>
#define ln cout<<'\n'
#define ll long long
#define in(a) insert(a)
#define pb(a) push_back(a)
#define pd(a) printf("%.10f\n",a)
#define mem(a) memset(a,0,sizeof(a))
#define all(c) (c).begin(),(c).end()
#define iter(c) __typeof((c).begin())
#define rrep(i,n) for(ll i=(ll)(n)-1;i>=0;i--)
#define REP(i,m,n) for(ll i=(ll)(m);i<(ll)(n);i++)
#define rep(i,n) REP(i,0,n)
#define tr(it,c) for(iter(c) it=(c).begin();it!=(c).end();it++)
ll check(ll n,ll m,ll x,ll y){return x>=0&&x<n&&y>=0&&y<m;}void pr(){ln;}
template<class A,class...B>void pr(const A &a,const B&...b){cout<<a<<(sizeof...(b)?" ":"");pr(b...);}
template<class A>void PR(A a,ll n){rep(i,n)cout<<(i?" ":"")<<a[i];ln;}
const ll MAX=1e9+7,MAXL=1LL<<61,dx[8]={-1,0,1,0,-1,-1,1,1},dy[8]={0,1,0,-1,-1,1,1,-1};
typedef pair<ll,ll> P;

void Main() {
  ll c[10][7],e[7];
  rep(i,10) {
    ll x=i;
    REP(j,1,8) {
      c[i][j%7]=x;
      x*=10;
      x+=i;
      x%=7;
    }
  }
  ll t=1;
  REP(i,1,8) {
    t*=10;
    t%=7;
    e[i%7]=t;
  }
  ll n;
  cin >> n;
  ll a[n],b[n];
  rep(i,n) cin >> a[i] >> b[i];
  ll dp[7];
  mem(dp);
  rep(i,n) {
    ll d[7];
    mem(d);
    rep(j,7) {
      d[j]+=dp[j];
      d[j]%=MAX;
      ll x=(j*e[b[i]%7]+c[a[i]][b[i]%7])%7;
      d[x]+=dp[j];
      if(!j) d[x]++;
      d[x]%=MAX;
    }
    rep(j,7) dp[j]=d[j]%MAX;
  }
  ll ans=0;
  rep(i,7) {
    ans+=dp[i]*i;
    ans%=MAX;
  }
  pr(ans);
}

int main(){ios::sync_with_stdio(0);cin.tie(0);Main();return 0;}