# [Bash], 69 bytes

<!-- language-all: lang-bash -->

    bc<<<`fold -1|tr "\n "adgjmptwbehknquxcfilorvysz +1[1*8][2*8][3*8]44`

[Try it online!][TIO-j4hbflgx]

[Bash]: https://www.gnu.org/software/bash/
[TIO-j4hbflgx]: https://tio.run/##S0oszvj/PynZxsYmIS0/J0VB17CmpEhBKSZPQSkxJT0rt6CkPCk1IzuvsLQiOS0zJ7@orLK4SkHbMNpQyyI22ghEGAMJE5OE//@T81NSFdLzc9L@/wcA "Bash – Try It Online"

Folds one char per line, transliterates each newline with `+`, each space with     `1` and each letter with the corresponding number of pushes. bc does the sum.
For some reason direct pipe to bc gives input error.