State the items from Figure 2 that should be written in place of the labels L1, L2, L3, and L4 in the algorithm shown in Figure 1.

You will not need to use all the items in Figure 2.

• L1:
• L2:
• L3:
• L4:

Figure 1

pinFound ← False
REPEAT
    enteredPIN ← ''
    WHILE enteredPIN = ''
        OUTPUT 'Please enter your 6-digit collection PIN: '
        enteredPIN ← L1
    ENDWHILE
    lockerStatus ← checkPinStatus(L2)
    IF lockerStatus = L3 THEN
        OUTPUT L4
    ELSE
        IF lockerStatus = 'Ready' THEN
            pinFound ← True
        ELSE
            OUTPUT 'Locker already opened or expired.'
        ENDIF
    ENDIF
UNTIL pinFound = True
OUTPUT 'Locker door opened. Please collect your parcel.'

Figure 2