Synchronized Branch Miner Remote

print("+------------------------+")
print("| Mine length = ?        |")
print("+------------------------+")
l = tonumber(read())
rednet.broadcast(l)
print("+------------------------+")
print("| Mine height = ? (>=2)  |")
print("+------------------------+")
h = tonumber(read())
rednet.broadcast(h)
print("+------------------------+")
print("| Amount of shafts = ?   |")
print("+------------------------+")
m = tonumber(read())
rednet.broadcast(m)