students, subject = map(int, input().split())
X=[]
for _ in range(subject):
     X.append(list(map(float, input().split())))
scores = zip(*X)
for i in scores:
    print(sum(i)/subject)

N, X = map(int, input().split())
marks_list = []
for _ in range(X):
    marks_list += [list(map(float, input().split()))]

for marks in zip(*marks_list):
    print(f"{sum(marks)/X:.1f}")

inp = list(map(int,list(input().split(' '))))
sub = []

for _ in range(inp[1]):
    sub.append(list(map(float,list(input().split(' ')))))

for i in zip(*sub):
    print(f'{(sum(i)/len(i)):.1f}') 

# Enter your code here. Read input from STDIN. Print output to STDOUT
n_students,x_subjects = map(int, input().split())

lista = list()

students_list = [x+1 for x in range(n_students)]

for j in range(x_subjects):
    line = list(map(float, input().split()))
    lista.append(line)

for student in zip(*lista):
    print(round(sum(student)/ x_subjects,1))
    

N,X = map(int,input().split())
subject_data = [list(map(float,input().split())) for _ in range(X)]
for stud_data in zip(*subject_data):
    print(round(sum(stud_data)/X,1))