def main():
h = CodeJamHelper("A-small-attempt0")
t = h.nextInt()
for x in range(t):
nt = h.nextLineOfInts()
n = nt[0]
t = nt[1]
flows = h.nextDelimitedLine()
flows = [[y == "1" for y in flow] for flow in flows ]
devices = h.nextDelimitedLine()
devices = [[y == "1" for y in device] for device in devices]
h.output(process(flows, devices))
def main():
h = CodeJamHelper("A-large")
t = h.nextInt()
for x in range(t):
h.output(process(h.nextDelimitedLine("/")))
def main():
h = CodeJamHelper("B-large-practice")
n = h.nextInt()
for x in range(n):
h.output(process(h.nextDelimitedLine()))
