Skipping input of elements in line

[ssegota]

Good day,

I am writing a code in which it would be good to skip some elements in line from file that I use as input.

For example:

Let us say I have this integers in line:

1 2 3 4 5 6 7 8 9 10 11 12

But I only need to use integers No. 2., 3., 6. and 11, so that input would be:

2 3 6 11

to their respective variables.

I know that I can input all of values and then just use the ones I need, but since I have 87 values inside the file and I only need 9 values, I would like not to even input these 78 unneeded values.

Is there a way to do this?

Note: All values are not of the same type.
Note: Wanted values will always be in the same spot.
Note: Total number of data in file(both wanted and unneeded) will always be the same.

Thank you in advance.

S.