5. Sum of digits
You are not logged in.
Log in
Input
Goal output
Your output
✅
0
0
0
✅
7
7
7
❌
10
1
10
❌
42
6
42
❌
99
18
99
❌
123
6
123
❌
1000
1
1000
❌
908
17
908
Some tests failed