void Solve(StreamScanner ss, StreamWriter sw)
{
//---------------------------------
var H = ss.Next(long.Parse);
var W = ss.Next(long.Parse);
var ans = Math.Min(GetAns(H, W), GetAns(W, H));
sw.WriteLine(ans);
//---------------------------------
}
static void Main()
{
var ss = new StreamScanner(new StreamReader(Console.OpenStandardInput()));
var sw = new StreamWriter(Console.OpenStandardOutput())
{
AutoFlush = false
};
new Program().Solve(ss, sw);
sw.Flush();
}