#include <stdio.h>
//課題3
int rec(int n){
switch(n){
	case 0:
	return 3;
	break;
	case 1:
	return 0;
	break;
	case 2:
	return 2;
	break;
	default:
	return rec(n-2)+rec(n-3);
	break;
}
 
}

int main(void) {
    int n = 50; 
    for(int i = 0; i <= n; i++){
        printf("%d, ", rec(i));
    }
    
	return 0;
}