Mathematics
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    93-30= 89-29= 87-20= 73-27= 44+21= 24-12= 45-27= 62-34= 93-72=
     49-16= 31-10= 92-64=
    70-10= 93-78= 63-19= 68-14= 75-35= 96-66= 78-23= 69-14= 82-37= 49-16= 31-10= 92-64=
    21+14= 92-60= 49-17= 65-53= 72-32= 71-33= 59-21= 92-79= 99-63=
    21+14= 92-60= 49-17= 65-53= 72-32= 71-33= 59-21= 92-79= 99-3=
    87-69= 81-54= 91-45= 31-19= 98-74= 64-33= 89-52= 55-42= 86-49=
     32+16= 51+17= 51+28=
    96-54= 19+17= 85-50= 90-54= 99-44= 93-49= 58+22= 95-43= 53+29= 32+16= 51+17= 51+28=
    87-79= 98-21= 65-38= 98-66= 82-58= 42+36= 93-43= 91-46= 91-14=
    35+27= 96-59= 75+14= 74+10= 99-55= 73-40= 58+17= 65+24= 82-59=
     75+17= 82-31= 83-24=
    77+16= 97-64= 77-47= 95-19= 93-69= 75+15= 40+19= 61+38= 45+11= 75+17= 82-31= 83-24=
    47+40= 58+31= 41+27= 61-53= 73-42= 30+16= 36+27= 52+22= 91-62=
    46+16= 78-66= 12-12= 77-18= 52+21= 67-27= 83-69= 91-82= 79-49=
     24+24= 82-21= 98-48=
    29+13= 91-70= 97-80= 94-15= 99-44= 55-55= 63-39= 69-46= 29+18= 24+24= 82-21= 98-48=
    61-47= 98-53= 29+15= 45+13= 13+30= 34+30= 68+10= 46+22= 70-41=
    20-19= 70-36= 75-58= 68-29= 70-69= 72-43= 62-41= 81+13= 87-58=
     62-57= 62-17= 30-16=
    45+13= 33+20= 98-93= 82-24= 59-44= 74-24= 35+26= 41+14= 72+11= 62-57= 62-17= 30-16=

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