19 lines
370 B
Python
19 lines
370 B
Python
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import bisect
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def main():
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n_tests = int(input())
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for _ in range(n_tests):
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n, m = [int(i) for i in input().split()]
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ai = [int(i) for i in input().split()]
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bj = [int(i) for i in input().split()]
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ai.sort()
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for i in range(m):
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tmp = ai.pop(0)
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bisect.insort(ai, bj[i])
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print(sum(ai))
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main()
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