14

14 is an esolang made by User:Marcus 2n2 because he likes esolangs named after numbers

Instructions

Symbol	What they do
1	Pops a and pushes 10a+1. If stack is empty, push 1.
4	Pops a and pushes 10a+4. If stack is empty, push 4.
:	Duplicates top of stack. If empty, push 0.
-	Pops a and b, and pushes b-a. If there's only one element, negate. If the stack is empty, push 0.
/	Skips all instructions (except \) if top of stack is 0. if top of stack is empty, interpret as 0
\	Stop skipping instructions.
(	No-op
)	Go back to the matching (
i	Push input.
u	Pop.
o	Output ascii.
O	Output number.
>	Rotate stack right.
<	Rotate stack left.

Basic components

Push 0

::-

Input all

(i/)\

Infinite loop

()

Print a newline

::-1:>1<-o

Comments

::-/any comment can be stored here\u

Set element to 0

:-

Examples

Cat program

btw, this esolang has

(i/o)

A+B problem

>::-<--

Reverse cat

(i/)\(o/)

Truth-machine

4:4>-i>-(:O/)

Looping counter

41::-:1:>--<((:::-1-<:o>/)\u ::-1:>1<-o)

Hello

44:::-<::-14---::-1:>-<-o11:111::-1---:o::-:4:::>-<::-1----:oo111o

Turing completeness proof

14 is Turing-complete because it is able to simulate three cell Brainfuck. Every program must start with :::. The following table is applicable:

Proof

bf	14
,	i
.	o
<	<
>	>
[	/(
]	/)\
-	::-1-
+	::-:1--