#include <stdio.h>

void natural_numbers(int num){
    int count = 1;
    if (count <= num){
        printf("%d\n",natural_numbers(num++));
        count++;
    }
    else {
        return;
    }
}


int main() {
    int num;
    scanf("%d", &num);
    
    if (num <= 0){
        printf("Invalid input");
        return 0;
    }
    
    natural_numbers(num);
}