#include<stdio.h>

void printNumbers(int n,int current){
    if(current < n)return;
    printf("%d\n",current);
    printNumbers(n,current + 1);
    
}
int main(){
    int n;
    scanf("%",&n);
    if(n<1){
        printf("Invalid input\n");
    }else{
        printNumbers(n,1);
    }
    return 0;
}