#include<bits/stdc++.h>
using namespace std;
string o,a,b;
int main()
{
int i,j,n,m,x=0,y=0,z=0;
cin>>o;
for(i=0;i<=o.size();i++)
{
if(o[i]=='.')
{
x=1;
y=i;
}
if(o[i]=='/')
{
x=2;
y=i;
}
if(o[i]=='%')
{
x=3;
y=i;
}
}
if(x>0&&x<3)
{
for(i=0;i<=y;i++)
{
a[i]=o[i];
}
reverse(a.begin(), a.end());
for(i=0;i<=y;i++)
{
if(a[i]==o[i])
{
cout<<"?";
}
if(z==1)
{
cout<<a[i];
}
}
for(i=y+1;i<=o.size();i++)
{
b[i]=o[i];
}
reverse(b.begin(), b.end());
for(i=y+1;i<=o.size();i++)
{
if(b[i]>0)
{
z=1;
}
if(z==1)
{
cout<<b[i];
}
}
return 0;
}
reverse(o.begin(), o.end());
if(x==0)
for(i=0;i<=o.size();i++)
{
if(o[i]>0)
{
z=1;
}
if(z==1)
{
cout<<o[i];
}
}
if(x==3)
{
for(i=1;i<=o.size()-1;i++)
{
if(o[i]>0)
{
z=1;
}
if(z==1)
{
cout<<o[i];
}
}
cout<<"%";
}
}
