/* package whatever; // don't place package name! */
import java.util.* ;
import java.lang.* ;
import java.io.* ;
class Ideone
{
{
Scanner scanner
= new Scanner
( System .
in ) ; s = scanner.next ( ) ;
int leng = s.length ( ) ;
int i = 0 ;
int count = 0 ;
for ( ; i < leng; i++ )
{
int c = 0 ;
for ( int j = i; j < leng; j++ )
{
if ( s.charAt ( i) == s.charAt ( j) )
{
c++;
}
else
break ;
}
if ( c > count)
count = c;
}
}
}
LyogcGFja2FnZSB3aGF0ZXZlcjsgLy8gZG9uJ3QgcGxhY2UgcGFja2FnZSBuYW1lISAqLwoKaW1wb3J0IGphdmEudXRpbC4qOwppbXBvcnQgamF2YS5sYW5nLio7CmltcG9ydCBqYXZhLmlvLio7CmNsYXNzIElkZW9uZQp7CglwdWJsaWMgc3RhdGljIHZvaWQgbWFpbiAoU3RyaW5nW10gYXJncykgdGhyb3dzIGphdmEubGFuZy5FeGNlcHRpb24KCXsKCQlTY2FubmVyIHNjYW5uZXIgPSBuZXcgU2Nhbm5lcihTeXN0ZW0uaW4pOwoJCVN0cmluZyBzID0gbmV3IFN0cmluZygpOwoJCXMgPSBzY2FubmVyLm5leHQoKTsKCQlpbnQgbGVuZyA9IHMubGVuZ3RoKCk7CgkJaW50IGkgPSAwOwoJCWludCBjb3VudCA9IDA7CgkJZm9yKDsgaSA8IGxlbmc7IGkrKykKCQl7CgkJCWludCBjID0gMDsKCQkJZm9yKGludCBqID0gaTsgaiA8IGxlbmc7IGorKykKCQkJewoJCQkJaWYocy5jaGFyQXQoaSkgPT0gcy5jaGFyQXQoaikpCgkJCQl7CgkJCQkJYysrOwoJCQkJfQoJCQkJZWxzZQoJCQkJCWJyZWFrOwoJCQl9CgkJCWlmKGMgPiBjb3VudCkKCQkJCWNvdW50ID0gYzsKCQl9CgkJU3lzdGVtLm91dC5wcmludChjb3VudCk7Cgl9Cn0=