View Code of Problem 23

#include <stdio.h>
int main(){
	int M,i;
	long long a[100]={1,2};
	for(i=2;i<100;i++){
		a[i]=a[i-1]+a[i-2];
	}
	while(scanf("%d",&M)!=EOF&&M!=0){
		printf("%lld\n",a[M-1]);		
	}
}