Orig Description
Flick Input
A: Flick Input
2D-kun, a college student who loves 2D, also known as "2D" bought a smartphone to replace the Galapagos mobile phone that he had been using for years. When 2D-kun operated a smartphone for the first time, he noticed that the method of character input was a little different from that of the old mobile phone. The smartphone used a method called "flick input", which takes advantage of the ability to touch and flick the screen. Flick input is a character input method shown below.
In flick input, input is performed using ten buttons, 0-9, as shown in Figure A (a) (Note that "#" and "*" have been omitted this time). Each button is assigned one character from the "A-row" to the "Wa-row", as shown in the figure.
Figure A: Smartphone button details
One button can be operated in the manner shown in Figure A (b). That is,
If you just "touch" the button, the corresponding "A-row" character will be output.
If you "flick to the left", the "I-row" will be output.
If you "flick upwards", the "U-row" will be output.
If you "flick to the right", the "E-row" will be output.
If you "flick down", the "O-row" will be output.
This is how flick input works for all buttons, as shown in Figure A (c). Note that to output "n", you must flick button 0 upward.
Your task is to find the string of characters that will be output by the operation represented by the string of characters representing the flick input.
Input
A string representing the flick input operation is given on one line (2 to 1,000 characters in length). This string consists of a combination of '0'-'9' digits representing the button to be operated, and five types of characters 'T', 'L', 'U', 'R', and 'D' representing the flick direction.
The characters representing the flick directions have the following meanings.
'T': just touch
'L': flick to the left
'U': flick upwards
'R': flick to the right
'D': flick downwards
For example, "2D" represents the operation of "flicking button 2 downward", so "ko" can be output.
The string given starts with a single digit and ends with a character representing the flick direction. Furthermore, it is guaranteed that no flick is made towards a place where there is no character (there is no input such as "8L" in Figure A (c)).
Output
Output a string representing the result of the flick input operation in Roman letters.
For the consonants in Roman letters,
ka-row: 'k'
sa-row: 's'
ta-row: 't'
na-row: 'n'
ha-row: 'h'
ma-row: 'm'
ya-row: 'y'
ra-row: 'r'
wa-row: 'w'
should be used. The Roman letters representing one hiragana character consist of a set of consonants and vowels ('a', 'i', 'u', 'e', 'o') and are output in two characters. "Shi" and "fu" violate this condition and are therefore incorrect. However, for the "A-row" characters, only one vowel should be output, and "n" should be output twice as "nn".
Output a newline character at the end of the string.
Sample Input 1
5R2D
Sample Output 1
neko
Sample Input 2
8U9U6U0T
Sample Output 2
yuruhuwa
Sample Input 3
9L4U7R1L2D0U4R3U4D
Sample Output 3
ritumeikonntesuto
Extracted Specification
An input string consisting of digits ('0'-'9') and characters ('T', 'L', 'U', 'R', 'D'), with a length between 2 and 1000 characters.
### Example Input:
```
5R2D
```
### Function Signature:
Write a function f(input_str) that takes in the input.
def f(input_str: str):
'''
input_str: a string
'''
Test Case Generator
Sure, let's create a test case generator for the given problem statement "Flick Input".
First, we need to understand the problem requirements and constraints:
1. The input string consists of digits '0'-'9' and characters 'T', 'L', 'U', 'R', 'D'.
2. The length of the input string is between 2 and 1000 characters.
3. The string starts with a digit and ends with a flick direction character.
We will generate a random input string that adheres to the constraints and then return it.
Here is the code for the test case generator:
```python
import random
def generate_flick_input_test_case():
# Define the possible digits and flick directions
digits = '0123456789'
flick_directions = 'TLURD'
# Generate a random length for the input string between 2 and 1000
length = random.randint(2, 1000)
# Initialize the input string with a random digit
input_string = random.choice(digits)
# Generate the rest of the string such that each digit is followed by a flick direction
while len(input_string) < length - 1:
input_string += random.choice(flick_directions)
input_string += random.choice(digits)
# Ensure the last character is a flick direction
input_string += random.choice(flick_directions)
return input_string
# Example usage
test_case = generate_flick_input_test_case()
print(test_case)
```
This code will generate a valid test case for the "Flick Input" problem. Here's a brief explanation of the key points:
- We start by defining the possible digits and flick directions.
- We then choose a random length for the input string.
- The input string is constructed by alternating between digits and flick directions.
- Finally, we ensure that the last character of the input string is a flick direction to comply with the problem constraints.
You can run the `generate_flick_input_test_case` function multiple times to generate different test cases for the problem.