// In the name of God
# include <iostream>
# include <string>
using namespace std;
int main(){
	int s;
	cin >> s;
	int func[9][s+1];
	for(int i=0;i<9;i++){
		for(int j=0;j<s+1;j++){
			func[i][j]=0;
			if(i==0){
				if(j<=9)
					func[i][j]=1;
				else
					func[i][j]=0;
			}
			else{
				for(int x=0;x<10;x++){
					if(j-x>=0){
						func[i][j]+=func[i-1][j-x];
					}
				}
			}
		}
	}
	if(s==1)
		cout << func[8][s]+1;
	else
		cout<<func[8][s];
	return 0;
}