919B

#include<bits/stdc++.h>
using namespace std;

int main() {
    int n, i, cnt = 0;
    cin>>n;

    for(i = 0; ; i++){
        int temp = i;
        int sum = 0;

        while(temp){
            int rem = temp % 10;
            temp /= 10;
            sum += rem;
        }
        if(sum == 10){
            cnt++;
            if(cnt >= n)
                break;
        }
    }
    cout<<i<<endl;

    return 0;
}