Sum of digits codeforces beta round #79

#1

sir, i tried solving the following question:
https://codeforces.com/contest/102/problem/B

and i tried to submit the following code for it:

can you please explain me why we cant solve this question using long long or int.

#2

Hey @aman17nov1999
Input
The first line contains the only integer n (0 ≤ n ≤ 10^100000).

See n is a number with 10^5 digits
U cant store it in long long or int data type

#3

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