#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) {
	return (ull)rng() % B;
}


int main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	string s; cin >> s;
	int n=s.size();
	n--;
	int a=s[0]-'0',b=s[1]-'0',c=s[2]-'0';
	if(c>=5){
		b++;
		if(b==10){
			a++; b=0;
			if(a==10){
				a=1,b=0;
				n++;
			}
		}
	}
	printf("%d.%d*10^%d\n",a,b,n);
}