issue = [0]*10
for i in range(3, 18+1) :
	issue[i]=0 
for i in range(1, 100000+1) :
	somme=floor(6*random()+1)+floor(6*random()+1)+floor(6*random()+1) 
	issue[somme]=issue[somme]+1 
for i in range(3, 18+1) :
	propor=issue[i]/1000 
	print "i : ", i
	print ' points -> '
	print "propor : ", propor
	print ' % des cas observés'
	# TRACER_SEGMENT(i,0,i,propor)