++ Cell c0 = 2 > +++++ Cell c1 = 5 [ Start loop with the cell pointer on the loop counter (c1) < + Add 1 to c0 > - Subtract 1 from c1 ] End loop with the cell pointer on the loop counter At this point our program has added 5 to 2 leaving 7 in c0 and 0 in c1 BUT we cannot output this value to the terminal since it's not ASCII encoded To display the ASCII character "7" we must add 48 to the value 7! 48 = 6 * 8 so let's use another loop to help us ++++ ++++ c1 = 8 and this will be our loop counter again [ < +++ +++ Add 6 to c0 > - Subtract 1 from c1 ] < . Print out c0 which has the value 55 which translates to "7"