89-37= 51-39= 52-27= 63 37= 62 19= 47 19=
63-27= 61-26= 48 23= 57-48= 42-17= 86-54=
54 28= 27 36= 48 23=57-48=54 29=42-17=
86-54=54 28=27 36=65-36=54-45= 35 27=
84-48=40-29=48 48=60 25= 72-45= 46-38=
56-28=78-69=72-37= 53 28=96-59= 75 17=
54 37= 59 19=55-47= 73 29=
56-27= 92-59=
12 29-19=69 10-36= 27 12-28= 67 27-37=72-54 12=
35 12-28=62-18 24= 53-29 19= 12 79-62=75-24 26=