Just to kill some time: learn Fortran!

https://www.fortrantutorial.com/documents/IntroductionToFTN95.pdf

http://rextester.com/l/fortran_online_compiler

program sum
integer :: i,j,k,imax,jmax
imax = 65535
jmax = 32
do i=0,imax-1
do j=0,jmax-1
k=j+i*jmax
print *,k
end do
end do
end program sum