def main():
prog_input = parse_program_input(sys.stdin.read().strip())
prog = Program(prog_input)
prog.execute()
view = prog.output_values
view = ''.join(map(chr, view)).strip()
print(view)
viewlines = view.splitlines()
alignment = sum(x*y for (x,y) in intersections(viewlines, SCAFFOLD_S))
print("Alignment:", alignment)
grid = LineGrid(viewlines)
print("Route:")
print(','.join(t+str(s) for (t,s) in find_path(grid)))
# I didn't find this programmatically, just from inspection
patternA = 'L,12,L,12,R,12'
patternB = 'L,8,L,8,R,12,L,8,L,8'
patternC = 'L,10,R,8,R,12'
route = 'A,A,B,C,C,A,B,C,A,B'
feed = 'n\n'
input_string = '\n'.join([route, patternA, patternB, patternC, feed])
prog_data = list(prog_input)
prog_data[0] = 2
prog = Program(prog_data)
prog.run_input(input_string)
print(''.join(chr(v) if v < 256 else '\n%s'%v for v in prog.output_values))
def run_droid(prog_input, droid_input):
prog = Program(prog_input)
prog.run_input(droid_input)
last = rindex(prog.output_values, ord('\n')) + 1
print(''.join(map(chr, prog.output_values[:last])))
print(prog.output_values[last:])