#PCBBAY0000035. Tỉ lệ phần trăm từ hai đại lượng (Percentage from Two Quantities)

Tỉ lệ phần trăm từ hai đại lượng (Percentage from Two Quantities)

Percentage from Two Quantities

Version: Phuoc Hung OJ Extended

Problem Statement

Given real quantities aa and b>0b>0, where aa is a part of total bb, compute the ratio r=abr=\dfrac ab and display it as a percentage. Print 100r100r with exactly 2 decimal places and a trailing % character.

Input

The only line contains real numbers aa and bb, in that order.

Output

Print a/ba/b as a percentage with exactly 2 decimal places and a trailing %.

Subtasks

  • Subtask 1 (100 points): 0≤a≤b≤10120\le a\le b\le10^{12}; b>0b>0.

Examples

Example 1

Input

3 8

Output

37.50%

Explanation. Substituting 3, 8 into (a / b) × 100% gives approximately 37.5. The required output formatting produces 37.50%.

Example 2

Input

1 3

Output

33.33%

Explanation. Substituting 1, 3 into (a / b) × 100% gives approximately 33.3333333333. The required output formatting produces 33.33%.

Example 3

Input

0 10

Output

0.00%

Explanation. Substituting 0, 10 into (a / b) × 100% gives approximately 0. The required output formatting produces 0.00%.