144 in the 5-minute chart is the 3-day line, and 144 in the 15-minute chart is naturally the 9-day line.

1 day and 4 hours, the 60-minute 9-day line is 9* 4=36 lines, the 30-minute 9th is 9*4*2=72, and the 15-minute 9*4*2*2=144.

That’s how it was conducted