An administrator is writing an algorithm to validate the length of a new password. The password must be between 8 and 20 characters, inclusive.

Figure 1

1  validLength ← False
2  REPEAT
3      OUTPUT 'Enter your password length:'
4      pLength ← USERINPUT
5      IF pLength < 8 THEN
6          OUTPUT 'Error: Password must be at least 8 characters.'
7      ELSE
8          IF pLength < 20 THEN
9              OUTPUT 'Error: Password must be at most 20 characters.'
10         ELSE
11             validLength ← True
12         ENDIF
13     ENDIF
14 UNTIL validLength = True