Mathematics
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    86-54= 29+17= 95-50= 80-54= 89-44= 83-49= 68+22= 85-43= 63+29= 42+16= 61+17= 61+28=
    97-79= 88-21= 75-38= 88-66= 92-58= 52+36= 83-43= 81-46= 81-14=
    45+27= 86-59= 85+14= 84+10= 89-55= 83-40= 68+17= 75+24= 92-59=
     85+17= 92-31= 93-24=
    87+16= 87-64= 87-47= 85-19= 83-69= 85+15= 50+19= 71+38= 55+11= 85+17= 92-31= 93-24=
    57+40= 68+31= 51+27= 71-53= 83-42= 40+16= 46+27= 62+22= 81-62=
    56+16= 88-66= 22-12= 87-18= 62+21= 77-27= 93-69= 81-72= 89-49=
     32+18= 51+19= 51+30=
    96-56= 19+19= 85-52= 90-56= 99-46= 93-51= 58+24= 95-45= 53+31= 32+18= 51+19= 51+30=
    87-81= 98-23= 65-40= 98-68= 82-60= 42+38= 93-45= 91-48= 91-16=
    35+29= 96-61= 75+16= 74+12= 99-57= 73-42= 58+19= 65+26= 82-61=
     75+19= 82-29= 83-26=
    77+18= 97-66= 77-49= 95-21= 93-71= 75+17= 40+21= 61+40= 45+13= 75+19= 82-29= 83-26=
    47+42= 58+33= 41+29= 61-55= 73-44= 30+18= 36+29= 52+24= 91-66=
    46+18= 78-68= 92-14= 77-20= 52+23= 67-29= 83-71= 91-84= 79-51=
     44+24= 62-21= 78-48=
    49+13= 71-70= 77-60= 74-15= 79-44= 75-55= 83-39= 89-46= 49+18= 44+24= 62-21= 78-48=
    81-47= 78-53= 49+15= 65+13= 33+30= 54+30= 88+10= 66+22= 90-41=
    30-9= 90-6= 95-58= 88-29= 90-69= 92-3= 82-41= 61+13= 67-58=
     82-57= 82-17= 50-16=

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