Compress the String! python

Problem Statement :

```In this task, we would like for you to appreciate the usefulness of the groupby() function of itertools . To read more about this function, Check this out .

You are given a string S. Suppose a character 'c' occurs consecutively X times in the string. Replace these consecutive occurrences of the character 'c' with (X,c) in the string.

For a better understanding of the problem, check the explanation.

Input Format

A single line of input consisting of the string S.

Output Format

A single line of output consisting of the modified string.

Constraints

All the characters of S denote integers between 0 and 9.
1<=|S|<=10^4```

Solution :

```                            ```Solution in C :

S=input()
i=1
a=[]
count=1
while i<len(S):
if S[i]==S[i-1]:
count+=1
i+=1
else:
a.append((count,int(S[i-1])))
i+=1
count=1
a.append((count,int(S[i-1])))
for i in a:
print(i,end=' ')```
```

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