Input at most nine lines of test datasets, and each line (or dataset) contains several integer numbers separated by a single white space.

輸入若干筆測資，最多有 9 筆，每一列有一筆測試資料。每筆測試資料包含若干個整數，整數間以空白隔開。

測資規範 :

• Each dataset includes n integer numbers, 1 ≤ n ≤ 12
• Each integer number m in a dataset has the limit, 0 ≤ m ≤ 40

• 每筆測資包含n個整數，1 ≤ n ≤ 12
• 任一個整數m，0 ≤ m ≤ 40

For each input line (or dataset), print the product value of those numbers involved. Please print a cartridge return at the end of each output line.

請針對每筆測資輸出其所有整數之乘積，最後必須有換行字元。

2 3 4 
1 2 2 4 0 7

24
0