int compareInt(int i, int j) 
  if i = j return 1
return 0

int addInt(int i, int j) return i + j


array  a = { 0, 10, 10, 15, 20 }

define FUN = "compareInt"

void process(FUN f, int i, int j)
   print f(a[i], a[j])
return

process("compareInt",  1, 2)
process("addInt",  3, 4)