case 1
    n1=200
    n2=200
    n3=1234567890
    result=43371629
case 2
    n1=300
    n2=200
    n3=1234567890
    result=821960009
case 3
    n1=400
    n2=200
    n3=1234567890
    result=332527138
case 4
    n1=400
    n2=250
    n3=1234567890
    result= 22626989
case 5
    n1=400
    n2=300
    n3=1234567890
    result= 1093966109