Go: package main
import (
	"fmt"
	"os"
	"strconv"
	"bufio"
)

var sc = bufio.NewScanner(os.Stdin)

func main(){
	for sc.Scan(){
		n := nextInt()
		cnt := 0
		// 37以上のとき組み合わせは存在しないが省くのめんどくさいのでまとめて計算
		for a:=0; a<=9; a++{
			for b:=0; b<=9; b++{
				for c:=0; c<=9; c++{
					for d:=0; d<=9; d++{
						if a+b+c+d==n{
							cnt++
						}
					}
				}
			}
		}
		fmt.Println(cnt)
	}
}

func next()string{
	//sc.Scan()
	return sc.Text()
}

func nextInt()int{
	a, _ := strconv.Atoi(next())
	return a
}

C++: #include <iostream>
#include <stdio.h>
using namespace std;

int main() {
	int n;
	while(scanf("%d",&n)!=EOF){
		int ans=0;
		for(int i=0;i<10;i++){
			for(int j=0;j<10;j++){
				for(int k=0;k<10;k++){
					int l=n-i-j-k;
					if(0<=l&&l<=9)ans++;
				}
				
			}
		}
	cout << ans << endl;
	}

	
	
    	// your code goes here
	return 0;
}

C++: #include <iostream>
using namespace std;

int main()
{
  int n;
  int ans = 0;
  while(cin >> n){
    for(int a = 0; a <= 9; a++){
      for(int b = 0; b <= 9; b++){
	for(int c = 0; c <= 9; c++){
	  for(int d = 0; d <= 9; d++){
	    if(n == a + b + c + d)
	      ans++;
	  }
	}
      }
    }    
    cout << ans << endl;
    ans = 0;
  }
}

C++: #include <iostream>

using namespace std;

int main(void){
	int val;
	while(cin >> val)
		cerr << val << endl;

	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
	int n;
	while(cin >>n){
		int f = 0;
		for(int a=0; a<10; a++){
			for(int b=0; b<10; b++){
				for(int c=0; c<10; c++){
					if(n-a-b-c>=0 && n-a-b-c<=9){f++;}
				}
			}
		}
		cout <<f<<endl;
	}
	return 0;
}

C++: #include <cstdio>

int main() {
	int a, b, c, d, n, cnt = 0;
	while (scanf("%d", &n) != EOF) {
		cnt = 0;
		for (a = 0; a <= 9; a++) {
			for (b = 0; b <= 9; b++) {
				for (c = 0; c <= 9; c++) {
					for (d = 0; d <= 9; d++) {
						if ((a + b + c + d) == n)cnt++;
					}
				}
			}
		}
		printf("%d\n",cnt);
	}
	return 0;
}

C++: #include<iostream>

using namespace std;
#define RENT 100000
int main(){
	int n, ans;
	int counter = 0;
	while (cin >> n){
		for (int i = 0; i < 10; i++){
			for (int q = 0; q < 10; q++){
				for (int w = 0; w < 10; w++){
					for (int e = 0; e < 10; e++){
						ans = i + q + w + e;
						if (ans == n){
							counter += 1;
						}
					}
				}
			}
		}
		cout << counter << endl;
	}
}

C++: #include <iostream>

using namespace std;

int main() {
    int ans[51] = {0};
    for (int a=0; a<=9; ++a)
        for (int b=0; b<=9; ++b)
            for (int c=0; c<=9; ++c)
                for (int d=0; d<=9; ++d)
                    ans[a + b + c + d] ++;

    int n;
    while (cin >> n) {
        cout << ans[n] << endl;
    }
    return 0;
}

C++: #include<iostream>

using namespace std;
int combine(int *a){
	int max = 0,i = a[0],s=1,j;
	for(j=1;j<4;j++){
		if(i==a[j]){
			s++;
			continue;
		}
		else{
			max = max>s?max:s;
			s=1;
			i = a[j];
		}
	}
	max = max>s?max:s;
	max = 4-max;
	if(max==0)
	return 1;
	else if(max==1)	return 4;
	else if(max==2)	return 6;
	else return 1;
}
int main(){
	int n;
	while(cin>>n){
		int a[4],k=0;
		int left = n/2,right = n-left;
		a[0] = left/2;
		a[1] = left-a[0];
		a[2] = right/2;
		a[3] = right-a[2];
		for(;a[0]>=0;a[0]--){
			for(;a[1]>=0;a[1]--){
				for(;a[2]<=9;a[2]++){
					for(;a[3]<=9;a[3]++){
						int sum = a[0]+a[1]+a[2]+a[3];
						if(sum==n){
							k += combine(a);
						}
					}
				}
			}
		}
		cout<<k<<endl;
	}
	return 0;
}

C++: #include <iostream>
using namespace std;

int main() {
	int i,j,k,l;
	int n, y_count = 0;
	while (cin >> n) {
		for (i = 0; i < 10; i++) {
			for (j = 0; j < 10; j++) {
				for (k = 0; k < 10; k++) {
					for (l = 0; l < 10; l++) {
						if (i+j+k+l == n) y_count++;
					}
				}
			}
		}
		cout << y_count << endl;
		y_count = 0;
	}
	return 0;
}

C++: #include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
using namespace std;
int main () {
	int n;
	while(cin >> n){
		int ans = 0;
		for(int a = 0; a < 10; a++){
			for(int b = 0; b < 10; b++){
				for(int c = 0; c < 10; c++){
					for(int d = 0; d < 10; d++){
						if(a + b + c + d == n){
							ans++;
						}
					}	
				}	
			}
		}
		cout << ans << endl;
	}
}

C++: #include<iostream>
#include <cstdio>
#include <algorithm>

using namespace std;

int main() {

	int N,i,j,k,l,count=0;

	while (cin >> N) {
		for (i = 0; i <= 9; i++) {
			for (j = 0; j <= 9; j++) {
				for (k = 0; k <= 9; k++) {
					for (l = 0; l <= 9; l++) {
						if (N == i + j + k + l)
							count++;
					}
				}
			}
		}
		cout << count << endl;
		count = 0;
	}
	
	return 0;

}

C++: #include<bits/stdc++.h>

using namespace std;

main(){
		int l;
		while(cin>>l){
			int o=0;
			for (int a=0; a < 10; a++){
				for (int b=0; b < 10; b++){
					for (int c=0; c < 10; c++){
						for (int d=0; d< 10; d++){
							if(a+b+c+d==l){
								o=o+1;
							}
						}
					}
				}
			}
			printf("%d\n",o);
		}
}

C++: #include<iostream>
#include <conio.h>
using namespace std;

int main()
{
	int n;
	while (cin>>n)
	{
		int combo = 0;
		for (int a=0;a<10;++a)
		{
			for (int b=0;b<10;++b)
		{
			for (int c=0;c<10;++c)
		{
			for (int d=0;d<10;++d)
			{
				if(a+b+c+d==n)
					++combo;
			}
			}
			}
		}
		cout<<combo<<endl;
	}
	return 0;
	cin.get();
	getch();
}

C++: #include <iostream>
#include <string>
#include <algorithm>

using namespace std;


// cin >>
// cout <<
int main(){
	int in=0;
	int out=0;
	cin >>in;
	if(cin.eof()!=true){
	    for(int i=0;i<10;i++){
		    for(int j=0;j<10;j++){
			    for(int k=0;k<10;k++){
				    for(int l=0;l<10;l++){
					    if(i+j+k+l==in){
					    out++;	
					    }	
				    }
			    }
		    }
	    }
	}
	cout <<out;
	
	return 0;
}

C++: #include <iostream>

using namespace std;

int main(){
	int n;
	while(cin >> n){
		int count = 0;
		for(int a = 0; a <= 9; ++a){
			for(int b = 0; b <= 9; ++b){
				for(int c = 0; c <= 9; ++c){
					for(int d = 0; d <= 9; ++d){
						if(a + b + c + d == n){
							++count;
						}
					}
				}
			}
		}
		cout << count << endl;
	}
	return 0;
}

C++: #include<stdio.h>
int main(void)
{
	int a,b,c,d,n,N,Na;
	while(scanf("%d",&n)!=EOF){
		N=n/4;
		Na=n%4;
		a=N;
		b=N;
		c=N;
		d=N+Na;
		printf("4\n");
	}
	return 0;
}

C++: #include <string>
#include <vector>
#include <algorithm>
#include <iostream>

using namespace std;

int comb(int ball, int bar){
    int temp = 1;
    for (int i = ball + bar; i > ball; --i){
        temp *= i;
    }
    
    int d = 1;
    for (int i = bar; i > 0; --i){
        d *= i;
    }
    return temp / d;
}

int main(){
    int input;
    while (cin >> input){
        cout << comb(input, 3) << endl; 
    }
    
}

C++: #include <iostream>
using namespace std;

int main() {
	int n, i, j, k, l, count = 0;
	while (cin >> n) {
		count = 0;
		for (i = 0; i<10; i++){
			for (j = 0; j<10; j++){
				for (k = 0; k<10; k++){
					for (l = 0; l<10; l++){
						if (i + j + k + l == n) count++;
					}
				}
			}
		}
		cout << count << endl;
	}
}

C++: #include<iostream>
#include<algorithm>
using namespace std;

int main()
{
	int a;
	while(cin>>a)
	{
	cin>>a;
	int b =0;
	for(int c=0;c<10;c++)
		for(int d =0;d<10;d++)
			for(int e =0;e<10;e++)
				for(int f =0;f<10;f++)
				{
					if
						(c+d+e+f==a)
						b=b+1;
				}
				cout<<b<<endl;
}
				
}

C++: #include <iostream>
#include <vector>
using namespace std;

int countNum(int num) {
	int n = 0;
	for (int a = 0; a < 10 && a <= num ; a++) {
		if (num - a > 27)
			continue;
		for (int b = 0; b < 10 && b + a <= num ; b++) {
			if (num - b - a > 18)
				continue;
			for (int c = 0; c < 10 && c + b + a <= num ; c++) {
				if (num - b - a - c > 9)
					continue;
				n++;
			}
		}
	}
	return n;
}

int main() {
	int n = 0;
	vector<int> dst;
	while (cin >> n) {
		dst.push_back(countNum(n));
	}
	for (vector<int>::iterator it = dst.begin(); it < dst.end(); it++)
		cout << *it << endl;
	return 0;
}