### My issue

can anyone tell me the error i have run three test cases succesfully but i cant figure out where i did wrong

### My code

```
# cook your dish here
import math
t=int(input())
for i in range(t):
n,a,b=map(int,input().split())
sq=int(math.sqrt(n))
d=sq-1
print(int((sq*a)+(d*b)))
```

Problem Link: BIN_BAT Problem - CodeChef