Write a problem to operate a light according to the folling sequence:
-A momentary pushbutton is pressed to start the sequence.
-The light is switched on and remains on for 2 seconds.
-The light is then switched off and remains off for 2 seconds.
-A counters is incremented by 1 after this sequence.
-The sequence then repeats for a total of 4 counts.
-After the fouth count, the sequence will stop and the counter will be reset to zero/