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N,X=map(int,input().split())
marks=[]
for i in range(X):
list1=list(map(float,input().split()))
marks.append(list1)
for i in range(N):
s=0
for j in range(X):
s+=marks[j][i]
average=s/X
print(f"{average:.1f}")
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')
N,X=map(int,input().split()) marks=[] for i in range(X): list1=list(map(float,input().split())) marks.append(list1) for i in range(N): s=0 for j in range(X): s+=marks[j][i] average=s/X print(f"{average:.1f}")
line1 = input().split() m=int(line1[0]) n=int(line1[1]) l= []
for i in range(n): stmt = input() li = stmt.split() A = list(map(float, li)) l.append(A)
print(l)
x=zip(*l) ml =list(x) #view/get the content as list sum=0 for i in range(m): sum=0 for j in range(n): sum = sum + ml[i][j] print(sum/n)
n,x=map(int,input().split()) subjects=[] for _ in range(x): marks = list(map(float, input().split())) subjects.append(marks)
for student_marks in zip(*subjects): avg=sum(student_marks)/x print(round(avg,1))
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')