#D7391. Squeeze the Cylinders
Squeeze the Cylinders
Squeeze the Cylinders
Example
Input
2 10 10
Output
40.00000000
inputFormat
Input
2 10 10
outputFormat
Output
40.00000000
样例
2
10 1040.00000000
Example
Input
2 10 10
Output
40.00000000
Input
2 10 10
Output
40.00000000
2
10 1040.00000000