using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Text; class TEST{ static void Main(){ Sol mySol = new Sol(); mySol.Solve(); } } class Sol{ public void Solve(){ for(int t=1;t<10000;t++){ if(isOK(t)){ Console.WriteLine(t); return; } } } static int A,B; static bool isOK(int tot){ for(int j=0;j<=tot;j++){ int a = j; int b = tot - j; if(A == Math.Round((100.0*a)/tot,MidpointRounding.AwayFromZero) && B == Math.Round((100.0*b)/tot,MidpointRounding.AwayFromZero) )return true; } return false; } public Sol(){ var d = ria(); A = d[0]; B = d[1]; } static String rs(){return Console.ReadLine();} static int ri(){return int.Parse(Console.ReadLine());} static long rl(){return long.Parse(Console.ReadLine());} static double rd(){return double.Parse(Console.ReadLine());} static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);} static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));} static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));} static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));} }