Positive Numbers

Source: beecrowd

Version: Phuoc Hung OJ Extended

Problem Statement

Read exactly six real numbers and count those strictly above zero. Preserve the official Portuguese output suffix.

Input

Six real numbers; the PHOJ Extended test uses one decimal digit per value and |x|<=1000.

Output

One line: <count> valores positivos.

Subtasks

• Subtask 1 (20%): Sáu số, |x|<=10.
• Subtask 2 (30%): Sáu số, |x|<=100.
• Subtask 3 (50%): Sáu số, |x|<=1000.

Examples

Example 1

Input

7.0
-5.0
6.0
-3.4
4.6
12.0

Output

4 valores positivos

Explanation

Four values are strictly positive.

Example 2

Input

0.0
-1.0
-2.0
-3.0
-4.0
-5.0

Output

0 valores positivos

Explanation

Zero is not positive.