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import gnuradio
from gnuradio import gr
from gnuradio import blocks as grblocks
import sys
if __name__ == '__main__':
duration = float(sys.argv[1])
tb = gr.top_block()
src0 = gr.null_source(8)
src1 = gr.null_source(8)
addr01 = grblocks.add_cc()
src2 = gr.null_source(8)
src3 = gr.null_source(8)
addr23 = grblocks.add_cc()
mult03 = grblocks.multiply_cc()
sink = gr.null_sink(8)
tb.connect(src0, (addr01, 0))
tb.connect(src1, (addr01, 1))
tb.connect(src2, (addr23, 0))
tb.connect(src3, (addr23, 1))
tb.connect(addr01, (mult03, 0))
tb.connect(addr23, (mult03, 1))
tb.connect(mult03, sink)
import time
tb.start()
time.sleep(duration)
print '##RESULT##', sink.nitems_read(0)/duration
import sys; sys.stdout.flush()
tb.stop()
tb.wait()
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