Input and out parameters in functions

I got blueprint like this one:

I am confused, The parameter on the right “can be picked up” called input parameter and the other parameter on the left “Character” is output parameter ?. But I find it strange and the parameter on the left should be called input parameter ?

The Can be picked up in an input as u input its value in the function and the input requires u to input the value to be uses where you need it
This is an input for my interface
image

and the input is returned for me to be able to use it else where
image

edit* typo

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Yes the input is the parameter on the left and output is the parameter on the right but in every tutorial I see they say the opposite

for example this tutorial:

in 13:13

it may be their pref