#include<bits/stdc++.h>
using namespace std;
#define ALL(x) begin(x),end(x)
#define rep(i,n) for(int i=0;i<(n);i++)
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
#define mod 1000000007
using ll=long long;
const int INF=1000000000;
const ll LINF=1001002003004005006ll;
int dx[]={1,0,-1,0},dy[]={0,1,0,-1};
// ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;}
template<class T>bool chmin(T &a,const T &b){if(b<a){a=b;return true;}return false;}

struct IOSetup{
    IOSetup(){
        cin.tie(0);
        ios::sync_with_stdio(0);
        cout<<fixed<<setprecision(12);
    }
} iosetup;
 
template<typename T>
ostream &operator<<(ostream &os,const vector<T>&v){
    for(int i=0;i<(int)v.size();i++) os<<v[i]<<(i+1==(int)v.size()?"":" ");
    return os;
}
template<typename T>
istream &operator>>(istream &is,vector<T>&v){
    for(T &x:v)is>>x;
    return is;
}

// 2^127 = 170141183460469231731687303715884105728 ~ 10^38
 
ostream &operator<<(ostream &os,const __int128 &n){
    if(n==0){
        os<<0;
        return os;
    }
    __int128 num=n;
    bool neg=false;
    if(num<0)neg=true,num=-num;
    string res="";
    while(num>0){
        res.push_back('0'+num%10);
        num/=10;
    }
    if(neg) res.push_back('-');
    reverse(begin(res),end(res));
    os<<res;
    return os;
}

istream &operator>>(istream &is,__int128 &n){
    string s;
    is>>s;
    int idx=0;
    bool neg=false;
    if(s[0]=='-')neg=true,idx++;
    n=0;
    for(;idx<(int)s.size();idx++){
        n=10*n+s[idx]-'0';
    }
    if(neg) n=-n;
    return is;
}

__int128 abs128(__int128 x){
    return x<0?-x:x;
}
 
__int128 gcd128(__int128 a,__int128 b){
    if(a==0) return b;
    if(b==0) return a;
    return b>0?gcd128(b,a%b):a;
}
using int128=__int128;

pair<int128,int> freader(){
    string s;cin>>s;
    int i=0;bool neg=false;
    if(s[0]=='-')i++,neg=true;
    int128 res=0;int b=0;bool t=false;
    for(;i<(int)s.size();i++){
        if(s[i]=='.'){
            t=true;
            continue;
        }
        res=10*res+(s[i]-'0');
        if(t)b++;
    }
    if(neg)res=-res;
    return make_pair(res,b);
}


template<class INT>
struct Fraction{
    INT num,den;// numerator / denominator
    INT Igcd(INT a,INT b){return (b?Igcd(b,a%b):a);}
    void normalize(){
        INT g=Igcd(num,den);
        num/=g;den/=g;
        if(den<0)num=-num,den=-den;
    }
    Fraction(INT num=0,INT den=1):num(num),den(den){normalize();}
    long double to_ld()const{return (long double)num/den;}
    double to_d()const{return (double)num/den;}
    Fraction &operator+=(const Fraction &rhs){
        num=num*rhs.den+rhs.num*den;
        den*=rhs.den;
        normalize();
        return *this;
    }
    Fraction &operator-=(const Fraction &rhs){
        num=num*rhs.den-rhs.num*den;
        den*=rhs.den;
        normalize();
        return *this;
    }
    Fraction &operator*=(const Fraction &rhs){
        num*=rhs.num;
        den*=rhs.den;
        normalize();
        return *this;
    }
    Fraction &operator/=(const Fraction &rhs){
        num*=rhs.den;
        den*=rhs.num;
        normalize();
        return *this;
    }
    Fraction abs(){
        Fraction ret(*this);
        if(ret<0)ret.first=ret.first*(-1);
        return ret;
    }
    Fraction operator-(){(*this).first*=-1;return *this;}
    Fraction operator+(const Fraction &rhs)const{return Fraction(*this)+=rhs;}
    Fraction operator-(const Fraction &rhs)const{return Fraction(*this)-=rhs;}
    Fraction operator*(const Fraction &rhs)const{return Fraction(*this)*=rhs;}
    Fraction operator/(const Fraction &rhs)const{return Fraction(*this)/=rhs;}
    bool operator==(const Fraction &rhs)const{return num*rhs.den==den*rhs.num;}
    bool operator!=(const Fraction &rhs)const{return !(*this==rhs);}
    bool operator>=(const Fraction &rhs)const{return num*rhs.den>=den*rhs.num;}
    bool operator<=(const Fraction &rhs)const{return num*rhs.den<=den*rhs.num;}
    bool operator>(const Fraction &rhs)const{return num*rhs.den>den*rhs.num;}
    bool operator<(const Fraction &rhs)const{return num*rhs.den<den*rhs.num;}
    friend ostream &operator<<(ostream &os,const Fraction &p){return os<<p.num<<"/"<<p.den;}
};

using frac=Fraction<int128>;


signed main(){
    auto p=freader();
    frac x=p.first;
    rep(i,p.second) x/=10;
    cout<<x<<endl;
    return 0;
}