~cpp
#include<stdio.h>
int fivo(int i) {
if (i == 1) {
return 1;
}
else if (i == 2) {
return 1;
}
else if (i > 2) {
return fivo(i-1) + fivo(i-2);
}
else {
return -1;
}
}
int main() {
int index = 0;
int output = 0;
printf(" Made in Korea \n");
printf(" ~ \n ");
scanf("%d", &index);
printf("%d\n", fivo(index));
printf("그 꼐 감 ");
return 0;
}










