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RUNNER
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interpreter in python
def RUNNER(code):
number = 0
tape = ""
translate = ["R", "U", "N", "E", "O"]
for letter in code:
if letter == "R":
number = RUNNER(tape)
tape = ""
elif letter == "U":
tape += translate[number % 5]
elif letter == "N":
number -= 1
elif letter == "E":
number += 1
elif letter == "O":
print(number)
return number