#Brainfuck, 16321 3602 15291597
Almost as short as Java. This is just the trivial answer generated by another program, This is still a computer generated answer, but I am sure there are way shorter solutions! The general idea is initializing the cells to 4 B F i u z. If the program has to output a number, it just goes to the first cell and manipualtes it, if it is one of the letters, it will just jump to the corresponding cell and output it.
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