George Boole

Interview

Time limit2sMemory limit512 MB

Summary

Read one boolean operation in the form true AND false and print its result.

Level: Easy1 of 10
Topics: Implementation, String, Math, Bit manipulation
Solved: No attempts yet

Problem

George Boole was an English mathematician, educator and philosopher, born in 1815. He was the first professor of mathematics at Queen's College, Cork (now University College Cork, UCC), and he is known as the inventor of boolean arithmetic, the field that today's computers are built on.

Boolean arithmetic has no infinite supply of numbers. It has exactly two values: 0 and 1, true and false, yes and no. This problem uses true and false. The two most common operations in boolean arithmetic are AND and OR.

An AND operation gives true only when both values are true.

true AND true = true
true AND false = false
false AND false = false

An OR operation gives true when at least one of the values is true.

true OR true = true
false OR false = false
false OR true = true

Read one such operation and print the correct result.

Input

Read a single line from standard input. The line contains three words in the format value1 operation value2.

Both value1 and value2 are either true or false. The field operation is either AND or OR.

Output

Print the result of the operation, either true or false, on one line.

Examples6

Example 1
Input
```
true AND true
```
Expected output
```
true
```
Example 2
Input
```
true OR true
```
Expected output
```
true
```
Example 3
Input
```
true AND false
```
Expected output
```
false
```
Example 4
Input
```
false OR true
```
Expected output
```
true
```
Example 5
Input
```
false AND false
```
Expected output
```
false
```
Example 6
Input
```
false OR false
```
Expected output
```
false
```