Brainfuck test program written by Robert de Bath in 2017
Length is 105 instructions
It needs 14 cells
It checks for a many mistakes commonly made in simple interpreters

+[>[<->+[>+++>[+++++++++++>][]-[<]>
-]]++++++++++<]>>>>>>----.<<+++.<-.
.+++.<-.>>>.<<.+++.------.>-.<<+.<.
