Question with keypad

And the following source code

#include $<mn>1</mn><mn>8</mn>$f$4520.$h$>$

#use delay $($ clock $=20000000)$

#fuses HS$,$ NOWDT, NOLVP

#include $"../$Library$/$myLibrary$.$h$"$

struct myKeyPad$\{$

int COLS:$3$;

int unused:$1$;

int ROWS:$4$;

$\}$;

struct myKeyPad $*$KEY $=0$xF$82$;

main$()\{$

lcd$\_$init$()$;

$*$TRISC $=0$xFO;

while$(1)\{\}$

$\}$

Complete the following table