Use sub-program

Input

The first line contains a natural number $N$ — the number of pairs. Each of the next $N$ lines contains two real numbers separated by a space. All input numbers have an absolute value not exceeding $100$.

Output

Print $N$ lines, each containing two numbers separated by a space: first the sum, then the product of the corresponding pair. Print each result with exactly $4$ digits after the decimal point.

Examples