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| 10071 | |
| Back to High School Physics | |
| A particle has initial velocity and acceleration. If its velocity after certain time is v then what will its | |
| displacement be in twice of that time? | |
| Input | |
| The input will contain two integers in each line. Each line makes one set of input. These two integers | |
| denote the value of v (−100 ≤v ≤100) and t (0 ≤t ≤200) (t means at the time the particle gains | |
| that velocity) | |
| Output | |
| For each line of input print a single integer in one line denoting the displacement in double of that time. | |
| Sample Input | |
| 0 0 | |
| 5 12 | |
| Sample Output | |
| 0 | |
| 120 |