Plural nouns
Let’s make a simple program that would turn a singular noun into a plural one. There are several rules that we would like to follow:
- For regular nouns, add
s
to the end (cat → cats, house → houses, etc)
- If the noun ends with
s
,ss
,sh
,ch
,x
, orz
, addes
to the end (bus → buses, tax → taxes, etc)
- If the noun ends with
y
, and the letter beforey
is a consonant, change the ending toies
(city → cities, puppy → puppies)
- If the noun ends with
y
, and the letter beforey
is a vowel, adds
(ray → rays, boy → boys, etc)
Input
The input contains a single word
w
(1 ≤ |w| ≤ 100). Output
The program should print the plural version of
w
. Examples
Input | Output |
bus | buses |
cat | cats |
table | tables |
Constraints
Time limit: 2 seconds
Memory limit: 512 MB
Output limit: 1 MB