C :

#include<stdio.h>

int fun(int n){
	int r=0;
	while(n!=0){
		r=r+n%10;
		n=n/10;
	}
	return r;
}

void main(){
	int n,i,c=0;
	scanf("%d",&n);
	for(i=1;i<=n;i++){
		if(fun(i)==13){
			c++;
		}
	}
	printf("%d",c);
}

C++ :

#include <iostream>
using namespace std;

int sum(int n){
	int s = 0;
	while(n != 0){
		s = s + n % 10;
		n = n / 10;
	}
	return s;
}

int main(){
	int n,c = 0;
	cin>>n;
	for(int i = 1;i <= n;i++){
		if(sum(i) == 13){
			c++;
		}
	}
	cout<<c<<endl;
}

Java :

import java.util.*;
public class Main{
	public static int getS(int n){
		int t,S=0;
		while(n>0){
			t=n%10;
			S+=t;
			n=n/10;
		}
		return S;		
	}


	public static void main(String args[]){
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int a=0;
		for(int i=1;i<=n;i++){
			if(getS(i)==13)
				a++;
			
		}
		System.out.print(a);
	}
}