# |
Author |
Problem |
Lang |
Verdict |
Time |
Memory |
Sent |
Judged |
|
256409863 |
Practice:
wisoredcf |
32C
- 12
|
PyPy 3-64
|
Accepted
|
186 ms
|
0 KB
|
2024-04-13 08:45:59 |
2024-04-13 08:45:59 |
|
n,m,s=map(int,input().split())
x=(n-((n-1)//s)*s)*((n-1)//s+1)
y=(m-((m-1)//s)*s)*((m-1)//s+1)
print(x*y)
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