Brainf**k consists of a continuous sequence of instructions that are stored in a program memory and are processed continuously starting with the first instruction.

Data is stored and processed in a data memory.

Brainf**k has eight commands, each consisting of a single character:

Character	Meaning
>	increment the data pointer (to point to the next cell to the right)
<	decrement the data pointer (to point to the next cell to the left)
+	increment the byte at the data pointer (increase by one)
-	decrement the byte at the data pointer (decrease by one)
.	output the byte at the data pointer
,	accept one byte of input, storing its value in the byte at the data pointer
[	if the byte at the data pointer is zero, then instead of moving the instruction pointerforward to the next command, jump it forward to the command after the matching ] command
]	if the byte at the data pointer is nonzero, then instead of moving the instruction pointer forward to the next command, jump it back to the command after the matching [ command