The Past

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The Past is a time-traveling esolang by User:PythonshellDebugwindow.

Memory model

The Past uses an arbitrary-size signed integer accumulator.


The final value of the accumulator is output (if the program goes into an infinite loop, then nothing will be output).


Command Effect
+ Increment the accumulator
- Decrement the accumulator
. Wait a tenth of a second
< Go back one millisecond in the past