Execute "saturday.exe -h" to get the usage. Commands: Command | Pops | Description ! | x | Push not x % | x, y | Push x modulo y & | x, y | Push x & y ( | None | Beginning of a loop ) | None | End of a loop * | x, y | Push x * y + | x, y | Push x + y - | x, y | Push x - y / | x, y | Push x / y 0 | None | Push 0 1 | None | Push 1 2 | None | Push 2 3 | None | Push 3 4 | None | Push 4 5 | None | Push 5 6 | None | Push 6 7 | None | Push 7 8 | None | Push 8 9 | None | Push 9 < | x, y | Push x < y = | x, y | Push x = y > | x, y | Push x > y C | x | Push ceil(x) D | x | Push x's denominator F | x | Push x! I | x | Push int(x) (floor(x)) N | x | Push x's numerator O | x | Push the ordinal of x R | x | Push round(x) (Round to nearest integer; if two integers are equally close, round to the even one) S | x | Push str(x) T | x | Push trunc(x) [ | x | Beginning of an if-statement (if x) ] | None | End of an if-statement ^ | x, y | Push x ^ y ` | x | Push a character with ordinal x b | None | Break (terminate the nearest enclosing loop) c | None | Continue (continue with the next cycle of the nearest enclosing loop) d | x | Push x twice g | x | Swap the stack top with the x-th element in the stack (after popping) i | None | Push the ordinal of the next character in the input (-1 if the input is exhausted) o | x | Output x p | x | Do Nothing s | x, y | Push x, then push y t | None | Terminate the program immediately x | x | Push the x-th element in the stack (after popping) | | x, y | Push x | y ~ | x | Push ~x