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from statistics import mean
N,X=map(int,input().split())
records=[list(map(float,input().split())) for _ in range(X)]
avgmarks=[mean(i) for i in list(zip(*records))]
print(*avgmarks,sep='\n')
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from statistics import mean N,X=map(int,input().split()) records=[list(map(float,input().split())) for _ in range(X)] avgmarks=[mean(i) for i in list(zip(*records))] print(*avgmarks,sep='\n')