#!/usr/bin/awk -f

BEGIN {
	i = 0
	j = 0
}

/global_dirty_state/ {
	time[i] = strtonum($3)
	dirtied[i] = strtonum(substr($12, 9))
	written[i] = strtonum(substr($13, 9))
	if (time[i] - time[j] > 30) {
		# printf "%f %d %d\n", time[i], dirtied[i], written[i], time[i] - time[j], dirtied[i] - dirtied[j], written[i] - written[j]
		printf "%f %f %d %d\n", time[i], time[i] - time[j], dirtied[i] - dirtied[j], written[i] - written[j]
		j++
	}
	i++
}