Traceback (most recent call last):
File "/opt/jellyfish/jellyfish.py", line 6, in <module>
interpret(program)
File "/opt/jellyfish/interpreter.py", line 208, in interpret
corner = fill(items)
File "/opt/jellyfish/interpreter.py", line 178, in fill
l_nbor = fill(items, l_conn.pos, level+1)
File "/opt/jellyfish/interpreter.py", line 178, in fill
l_nbor = fill(items, l_conn.pos, level+1)
File "/opt/jellyfish/interpreter.py", line 194, in fill
item.func = oper(l_input, r_input)