#include #define rep(i,n) for(int i = 0; i < n; i++) #define srep(i,a,b) for(int i = a; i < b; i++) #define all(A) (A).begin(),A.end() #define MOD 1000000007 using namespace std; using ll = long long; using P = pair; using Graph = vector>; int main(void){ int n; cin >> n; string s = ""; rep(i,9){ int c; cin >> c; rep(j,c) s += (i+1)+'0'; } sort(all(s),greater()); cout << s; }