#include <stdio.h>
#define N 20
int fibonuch(int a,int b){
    return a+b;
}
int main(){
    int f[N];
    f[0]=0;
    f[1]=1;
    for(int i=2;i<N;){
        f[i]=f[i-1]+f[i-2];
        i++;
        printf("f_{%d}/f_{%d}=%f\n",i-1,i-2,(double)f[i-1]/f[i-2]);
    }
    return 0;
}