#include <stdio.h>
#include <stdlib.h>

int intreg(double x)
{
    int y = (int)x;
    return (x == y);
}

int cate_cifre(long long x)
{
    int ct=0;
    while(x)
    {
        x/=10;
        ct++;
    }
    return ct;
}

int main()
{
    double x;
    scanf("%lf",&x);
    int ctmax=0;
    double max;
    int ok=1;
    while(x && ok)
    {
        double y=x;
        int ct=0;
        if(intreg(x))
        {
            ok=0;
            break;
        }
        while(!intreg(y) && cate_cifre(y)<15)
        {
            y=y*10;
            ct++;
        }
        long long z=y;
        while(z%10==0)
        {
            z/=10;
            ct--;
        }
        if(ct>=ctmax)
        {
            ctmax=ct;
            max=x;
        }
        scanf("%lf",&x);
    }
    if(ok==1)
        printf("%lf",max);
    else
        printf("Date de intrare invalide");
    return 0;
}