You have to create a function which receives 3 arguments: 2 numbers, and the result of an unknown operation performed on them (also a number).
Based on those 3 values you have to return a string, that describes which operation was used to get the given result.
The possible return strings are:
  `"addition"`,
  `"subtraction"`,
  `"multiplication"`,
  `"division"`.
## Example:
```
calcType(1, 2, 3) -->   1 ? 2 = 3   --> "addition"
```
## Notes
* In case of division you should expect that the result of the operation is obtained by using `/` operator on the input values - no manual data type conversion or rounding should be performed.
* Cases with just one possible answers are generated.
* Only valid arguments will be passed to the function.
calc_type=lambda a,b,c:{a+b:'addit',a-b:'subtract',a*b:'multiplicat',a/b:'divis'}[c]+'ion'
calc_type=lambda a,b,c:{a+b:'addit',a-b:'subtract',a*b:'multiplicat',a/b:'divis'}[c]+'ion'