CONCEPTS -1

2. Rahul is given a task to manipulate a string, He hired you as a developer your task is to delete all the repeating characters and print the result left. CHECK WITH 4

Sample Input :
mississipie

Sample Output :
mpe

3.You are given a string.Your task is to print only the consonants present
 in the string without affecting the sentence spacings if present. If no
 consonants are present print -1

Sample Input :
I am shrey 

Sample Output :
 m shry

4. You are given a number with duplicate digits your task is to remove the immediate duplicate digits and print the result

Sample Input :
1331

Sample Output :
11

9.you are given a string made up of parenthesis only.Your task is to check
 whether parenthesis are balanced or not.If they are balanced print 1 
else print 0 

Sample Input :
{({})}

Sample Output :
1

10.Joyal was given a sentence. His task is to delete the two words that comes together and print the sentence so that the words in the output sentence have distinct words compared to their adjacent words. If no words are present in the output sentence print -1

Input Description:
You are given input string 'S'

Output Description:
Print the all the words that are left in the string 's' so that the words in the output sentence have distinct words compared to their adjacent words. Print -1 if no words are left

Sample Input :
I am john cena cena john

Sample Output :
I am