9999*2222+3333*3334
=9*2*1111*1111+3333*(3333+1)
=18*1111*1111+3333*3333+3333
=18*1111*1111+9*1111*1111+3*1111
=(18+9)*1111*1111+3*1111
=27*1111*1111+3*1111
=3*1111(9999+1)
=33330000