[SWEA] 1284 수도 요금 경쟁

import java.util.Scanner;
import java.io.FileInputStream;

class Solution
{
    static int feeA(int P, int W) {
        return P*W;
    }
     
    static int feeB(int Q, int R, int S, int W) {
        if(W <= R) {
            return Q;
        }else {
            return Q + S*(W - R);
        }
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
         
        int T = Integer.parseInt(sc.nextLine());
        int P,Q,R,S,W;
        int A, B;
         
        for(int i = 1; i <= T; i++) {
            P = sc.nextInt();
            Q = sc.nextInt();
            R = sc.nextInt();
            S = sc.nextInt();
            W = sc.nextInt();
             
            A = feeA(P, W);
            B = feeB(Q, R, S, W);
             
            System.out.println("#" + i + " " + ((A > B) ? B : A));
             
        }
    }
}