#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main() {
string str="1e1.4.5.6";
stringstream ss(str);
string data;
while(getline(ss, data, '.')) {
cout<<data<<"\n";
}
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8c3RyaW5nPgojaW5jbHVkZSA8c3N0cmVhbT4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewoJc3RyaW5nIHN0cj0iMWUxLjQuNS42IjsKCXN0cmluZ3N0cmVhbSBzcyhzdHIpOwoJc3RyaW5nIGRhdGE7CgkKCXdoaWxlKGdldGxpbmUoc3MsIGRhdGEsICcuJykpIHsKCQljb3V0PDxkYXRhPDwiXG4iOwoJfQoJCglyZXR1cm4gMDsKfQ==