#include <iostream>
#include <string>
using namespace std;
int main()
{
string names[4];
for(int i=0;i<4;i++)
{
cin>>names[i];
}
for(string val : names)
{
cout << val << endl;
}
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8c3RyaW5nPgoKdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkKewogIHN0cmluZyBuYW1lc1s0XTsKICAKICBmb3IoaW50IGk9MDtpPDQ7aSsrKQogIHsKICAgIGNpbj4+bmFtZXNbaV07CiAgfQoKICBmb3Ioc3RyaW5nIHZhbCA6IG5hbWVzKQogIHsKICAgIGNvdXQgPDwgdmFsIDw8IGVuZGw7CiAgfQoKICByZXR1cm4gMDsKfQ==