Counter with step and reset via closure

JavaScript Medium closures

Task «Counter with step and reset via closure»

Implement the createCounter function, which takes an initial value start and a step step. The function should return an object with three methods: increment() — increases the current value by step and returns it, decrement() — decreases it by step and returns it, reset() — resets the value to the initial start. Use closures to store the state. The initial value start and step step are integers.

Input Format

First line: start (integer). Second line: step (integer). Third line: number of calls n (integer, 1 ≤ n ≤ 20). Next n lines, each contains one command: 'increment', 'decrement', or 'reset'.

Output Format

For each command, output the current value of the counter after executing the command, each on a new line.

Examples

Example 1

INPUT

10
3
3
increment
increment
decrement

OUTPUT

13
16
13

Example 2

INPUT

-5
2
4
decrement
decrement
increment
reset

OUTPUT

-7
-9
-7
-5

Example 3

INPUT

5 4 6

OUTPUT

78.54
24.00

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