Complete the truth table for a $3-$input NOR gate.

$8$

$\backslash$table$[[$A$,$B$,$C$,$X$],[0,0,0,],[0,0,1,],[0,1,0,],[0,1,1,],[1,0,0,],[1,0,1,],[1,1,0,],[1,1,1,]]$