The following pseudocode describes how to obtain the name of a day, given the day

number (0 = Sunday, 1 = Monday, and so on.)
Declare a string called names containing "SunMonTueWedThuFriSat".
Compute the starting position as 3 x the day number. Extract the substring of names at the starting position with length 3. Check this pseudocode, using the day number 4. Draw a diagram of the string that is being computed,