In the disassembly there's such code:

movl   $0x6,-0x4(%rbp)

I try to print the value this way but fails:

(gdb) p  0x4(%esp)
A syntax error in expression, near `%esp)'.
(gdb) p 0x4+$esp
Argument to arithmetic operation not a number or boolean.

How to print it correctly?

gdb cpu-registers
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