#include <iostream>
using namespace std;
int main()
{
int n;
string s;
cin>>s;
n=s.length();
string pr="";
for(int i=0;i<n;i++)
{
pr.push_back(s[i]);
if(i==n-1) //last letter
cout<<pr<<endl;
else if(s[i+1]>='A' && s[i+1]<='Z') //s[i+1] is a capital letter.
{
cout<<pr<<endl;
pr="";
}
}
return 0;
}
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