Tyre problem solution codechef – There are NN bikes and MM cars on the road. Each bike has 22 tyres. Each car has 44 tyres. Find the total number of tyres on the road.

Tyre problem solution codechef

There are NN bikes and MM cars on the road.

  • Each bike has 22 tyres.
  • Each car has 44 tyres.

Find the total number of tyres on the road.

Input Format

  • The first line will contain TT – the number of test cases. Then the test cases follow.
  • The first and only line of each test case contains two integers N,MN,M.

Output Format Tyre problem solution codechef

For each test case, output in a single line, the total number of tyres on the road.

Constraints

  • 1T10001≤T≤1000
  • 0N,M1000≤N,M≤100

Sample Input 1  Tyre problem solution codechef

2
2 1
3 0

Sample Output 1 

8
6

Explanation Tyre problem solution codechef

Test Case 11: There are 22 bikes and 11 car. Each bike has 22 tyres, so there are 22=42⋅2=4 bike tyres. Similarly, each car has 44 tyres, so there are 14=41⋅4=4 car tyres. Adding the tyres of all vehicles, we get 4+4=84+4=8 tyres in total.

Test Case 22: There are 33 bikes and 00 cars. Each bike has 22 tyres, so there are 32=63⋅2=6 bike tyres. There are no cars, so there are 04=00⋅4=0 car tyres. Adding the tyres of all vehicles, we get 6+0=66+0=6 tyres in total.

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