#include #include #include #include #include #include #include #include typedef long long int ll; using namespace std; #define FOR(i,a,b) for (int i=(a);i<(b);i++) #define REP(i,n) for (int i=0;i<(n);i++) #define EREP(i,n) for (int i=1;i<=(n);i++) const int MOD = 1000000007; const int INF = 1000000; ll a=1,b=1,ans,M,temp; ll A[5010], N; string str="1"; ll dp[100000000]; ll powr(ll n,ll p){ if(p==0)return 1; if(p%2==0){ ll t=powr(n,p/2)%MOD; return t*t%MOD; }else return powr(n,p-1) * n %MOD; } // 100^n+(100^n-1)/99 1/99 (10^2i -1) int main(){ scanf("%lld",&N); a=powr(100,N-1)%MOD+(powr(100,N-1)-1)*powr(99,(MOD-2))%MOD; REP(i,N%11){ if(N==0){str="0";break;} if(i==1)continue; str += "01"; } cout<