2 3 3 4 4 41 1 2 1 2 32-1= 3-1= 3-2= 4-1= 4-2= 4-3=5 5 5 5 6 61 2 3 4 1 25-1= 5-2= 5-3= 5-4= 6-1= 6-2= 6 6 6 7 7 73 4 5 1 2 36-3= 6-4= 6-5= 7-1= 7-2= 7-3= 7 7 7 8 8 84 5 6 1 2 37-4= 7-5= 7-6= 8-1= 8-2= 8-3= 8 8 8 8 9 94 5 6 7 1 28-4= 8-5= 8-6= 8-7= 9-1= 9-2=9 9 9 9 9 93 4 5 6 7 89-3= 9-4= 9-5= 9-6= 9-7= 9-8=10 10 10 10 1 2 3 4 10-1= 10-2= 10-3= 10-4= 10 10 10 10 5 6 7 8 10-5= 10-6= 10-7= 10-8= 10 9 10-9=