// Where we want to go

for i=0 to 9
  for j=i to 9
    if get(j) < get(i) then swap(i, j) end
  end
end


// The program!

0 10 i j for for ifless swap

// numbers can be used multiple times,
// the other items are to be used exactly once each

for(variable, exp, exp, code) -> code
ifless(exp, exp, code) -> code
swap(exp, exp) -> code
variable -> exp
number -> exp
get(exp) -> exp  // << always available, at least one level deep

[+ maybe make +1 and -1 available for off-by-one-stuff]