public static void Main() {
int N = int.Parse(System.Console.ReadLine());
var cup = new Cup();
for (int i=0; i<N; i++) {
var line = System.Console.ReadLine().Split(' ');
int operation = int.Parse(line[0]);
int gram = int.Parse(line[1]);
switch(operation) {
case 1: cup.addWater(gram); break;
case 2: cup.addCafee(gram); break;
default: cup.tasting(gram); break;
}
}
System.Console.WriteLine((int)(100*cup.concentration()));
}