#include <iostream>
#include <string>
using namespace std;
int main()
{
string s1, s2;
cin >> s1 >> s2;
string res;
if (s1.size() >= s2.size())
res = s1.size();
else
res = s2.size();
cout << res << '\n';
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgogI2luY2x1ZGUgPHN0cmluZz4KIAogdXNpbmcgbmFtZXNwYWNlIHN0ZDsKIAogaW50IG1haW4oKQogewoJc3RyaW5nIHMxLCBzMjsKCWNpbiA+PiBzMSA+PiBzMjsKIAoJc3RyaW5nIHJlczsKCQoJaWYgKHMxLnNpemUoKSA+PSBzMi5zaXplKCkpCiAgICAgICAgcmVzID0gczEuc2l6ZSgpOwogICAgZWxzZSAKICAgICAgICByZXMgPSBzMi5zaXplKCk7CQkKCQoJY291dCA8PCByZXMgPDwgJ1xuJzsKIAkKCXJldHVybiAwOwoJCiB9CiAKIA==