function Main(input){
	input = input.split("\n");
  var n = ~~input.shift();
  
 	var sum = 0;
  
  for(var i = 0; i < n; i++){
  	var xu = input.shift().split(" ");
    var x = xu[0];
    var u = xu[1];
    if(u == "BTC"){
    	x = x.split(".").map(a=>~~a);
      x[0] *= 380000;
      x[1] *= 0.0038;
      sum += x[0] + x[1];
    }else{
    	sum += ~~x;
    }
  }
  
  return sum;
}

// If you are interested in the algorithms I used, 
// there is no need to read down from this line.

((b,c,d)=>"undefined"!=typeof require?console.log(Main(require("fs").readFileSync("/dev/stdin","utf8"))):[b=b.split("\n").slice(1,-1).join("\n"),c=function(){try{return Main(b)}catch(f){return f.stack||f.message}}(),d=typeof c,"string"==d||(c=JSON.stringify(c)),$("<form>").append([[10,b],0,[1,d],0,[10,c]].map(f=>$(f?"<textarea>":"<br>",f&&{rows:f[0],cols:40,text:f[1]}))).appendTo("body")])(`
3
100000000 JPY
100.00000000 BTC
0.00000001 BTC
`);