acgo

#include<bits/stdc++.h>
using namespace std;
int main(){
int n;
cin>>n;
int l[37]={0,12,13,14,15,16,17,18,19,23,24,25,26,27,28,29,34,35,36,37,38,39,45,46,47,48,49,56,57,58,59,67,68,69,78,79,89};
int a=n/36;
int d=n%36;
if(n%36==0){
a--;
d=36;
}
cout<<l[d];
for(int i=1;i<=a;i++){
cout<<l[d]%10;
}
return 0;
}