Created
March 22, 2017 15:58
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| def sumMultiple(n, k): | |
| n -= n % k | |
| return (n + k) * int(n / k) >> 1 | |
| def solve(N): | |
| result = sumMultiple(N, 3) + sumMultiple(N, 5) - sumMultiple(N, 15) | |
| return result | |
| T = int(input()) | |
| for i in range(T): | |
| N = int(input()) | |
| print (solve(N - 1)) |
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