Best students

In Germany, the grading system is very different. The best grade is 1 and the worst one is 6.

German Grade

Grade Description

US grade

1 – 1.5

Very Good

A

1.6 – 2.5

Good

B

2.6 – 3.5

Satisfying

C

3.6 – 4.9

Sufficient

D

5.0 – 6.0

Insufficient

F

Given many student grades, you are asked to calculate how many students are the most hard-working and have a grade in range [1; 1.5].

The program should stop execution as soon as the grade is outside the range [1; 6].

The output should contain the number of students who are in the given range.

Input

Output

4 3.2 1.2 1.1 4.2 6 1.6 1 7

3

Constraints

Time limit: 2 seconds

Memory limit: 512 MB

Output limit: 1 MB

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