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Easymathloops

Sum of Digits

Time limit 2 s · Memory 64 MBAcceptance: —Solved by: 0

Statement

You are given a non-negative integer n. Print the sum of its digits.

Examples

Example 1
Input
1234
Output
10
Example 2
Input
0
Output
0

Constraints

  • 0 ≤ n ≤ 10^18
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