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import heapq
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import ctypes
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a=int(input())
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b=input().split()
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for i in range(len(b)):
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b[i]=int(b[i])
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heapq.heapify(b)
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# print(b)
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sum=0
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while len(b) != 1:
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c,d=heapq.nsmallest(2,b)
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# heapq.heappop(b)
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# heapq.heappop(b)
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b.remove(c)
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b.remove(d)
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sum+=c+d
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heapq.heappush(b,c+d)
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print(sum) |
