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Ostrich weight

Statement

 Goal

A male ostrich weighs 20% more than a female one.
Given the gender of an ostrich, and its weight, display the weight of its counterpart.
If the gender is unknown, you should display "UNKNOWN".
Input
A single letter : 'F' for Female, 'M' for Male, any other char should be treated as unknown.
An integer W representing the ostrich weight.
Output
The weight of the opposite gender ostrich truncated.
Constraints
0 <= W < 200
Example
Input
F
100
Output
120

Game modes
FastestShortest

Test cases
Test 1 Test
Input
F 100
Output
120

Validator 1 Validator
Input
F 90
Output
108

Test 2 Test
Input
M 120
Output
100

Validator 2 Validator
Input
M 108
Output
90

Test 3 Test
Input
a 50
Output
UNKNOWN

Validator 3 Validator
Input
z 40
Output
UNKNOWN

Test 4 Test
Input
F 101
Output
121

Validator 4 Validator
Input
M 117
Output
97

Solution language

Solution

Stub generator input
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