using System; using System.IO; using System.Linq; using System.Collections; using System.Collections.Generic; using System.Numerics; using System.Diagnostics; using System.Text; using System.Text.RegularExpressions; using System.Threading.Tasks; using static System.Math; class P { static void Main() { Console.WriteLine(Regex.Matches((Console.ReadLine() + Console.ReadLine()), "o*").Cast().Max(x => x.Length)); } }