#include<bits/stdc++.h>
using namespace std;
#define int long long
#define f(i,j,k) for(int i=j;i<=k;++i)
#define g(i,j,k) for(int i=j;i>=k;--i)
int n,m,s,l;
const int N=5e4;
double f[N],g[N],h[N];
signed main(){
	cin>>n;
	f(p,1,n){
		if(p>50){h[p]=1;continue;}f[0]=1;
		f(i,0,n)f(j,0,n-i)g[i+j+1]+=f[i]*f[j];
		f(i,0,n)f[i]=g[i]/i,g[i]=0;h[p]=f[n];
	}
	f(p,1,n)cout<<p<<" ",printf("%.5lf\n",h[p]-h[p-1]);
	return 0;
}