string = raw_input()

vw = 'aeiou'.upper()
strl = len(string)
kevin = sum(strl-i for i in range(strl) if string[i] in vw)
stuart = strl*(strl + 1)/2 - kevin

if kevin == stuart:
	print 'Draw'
elif kevin > stuart:
	print 'Kevin %d' % kevin
else:
	print 'Stuart %d' % stuart