I know that the property map(function,list) applies a function to each element of a single list. But how would it be if my function requires more than one list as input arguments?. 

For example I tried:

```
   def testing(a,b,c):
      result1=a+b
      result2=a+c
      return (result1,result2)

a=[1,2,3,4]
b=[1,1,1,1]
c=[2,2,2,2]

result1,result2=testing(a,b,c)

```

But this only concatenates the arrays: 

```
result1=[1,2,3,4,1,1,1,1]
result2=[1, 2, 3, 4, 2, 2, 2, 2]

```

and what I need is the following result:

```
result1=[2,3,4,5] 
result2=[3,4,5,6]

```

I would be grateful if somebody could let me know how would this be possible or point me to a link where my question could be answered in a similar case.