Tom now had access to the ammunition [ammo]. He now had to load a correct amount of ammo to shoot the combatant. The gun calculated the amount of ammo to be loaded and displayed the following to Tom –
“There are 27 bullets that can be fired in each roundand 64 rounds are available, which means 27×64=2x×3y bullets can be shot”
The gun can be activated digitally by entering another passcode, which is the numerical value of (x-y).
What is the passcode that Tom has to enter? ______ [Enter a numerical value]