#include<bits/stdc++.h>
#define REP(i,n) for(int i=0;i<(n);i++)
#define ALL(v) (v).begin(),(v).end()
#define int long long
using namespace std;

signed main()
{
    string s; cin>>s;
    int N=s.size();
    int k=0;
    REP(i,3){
        k=k*10+s[i]-'0';
    }
    int r=k%10; k-=r;
    if(r>=5) k+=10;
    if(k==1000) k=100,N++;
    double ans=(double)k/100;
    printf("%.1lf*10^%d\n",ans,N-1);
    
}