DESIGN A COUNTER THAT COUNTS 0,4,6,8,12,14,0 (MOD6) AND WHEN THE COUNTER SHOWS 14 AND THE COUNTER WILL STOP COUNTING AND WAIT 3 MINUTES. BETWEEN COUNTS IN THE COUNTING PROCESS IS 6,667 SEC.AFTER THREE MINUTES, THE COUNTER WILL BEGIN THE COUNTING LIKE 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0, The PROCESS IS INITIATED BY PRESSING JUST A START PUSH BUTTON. YOU HAVE MANY J-K FFS AND ALSO YOU HAVE THE CLOCK PULSE GENERATORS WITH DESIRED FREQUENCY