L1-040 最佳情侶身高差 （10 分）

import java.util.Scanner;
/*
 *@author 曹家偉
 */
public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner s=new Scanner(System.in); 
		int n=s.nextInt();
		String ch[]=new String[n];
		double a[]=new double[n];
		for(int i=0;i<n;i++) {
			ch[i]=s.next();
			a[i]=s.nextDouble();
		}
//		char ch[]=
		int p=0;
		for(int i=0;i<n;i++) {
			
			char ch1[]=ch[i].toCharArray();
			if(p<n-1) {
			if(ch1[0]=='M') {
				double x=a[i]/1.09;
				System.out.println(String.format("%.2f", x));
			}
			else {
				double y=a[i]*1.09;
				System.out.println(String.format("%.2f", y));
			}}
			else {
				if(ch1[0]=='M') {
					double x=a[i]/1.09;
					System.out.print(String.format("%.2f", x));
				}
				else {
					double y=a[i]*1.09;
					System.out.print(String.format("%.2f", y));
				}
			}
			p++;
		}
		
	}

}