import numpy as np

N, M = list(map(int, input().split()))

array_list = []

for _ in range(N):
    inp= input().split()
    m_append= []
    for i in range(M):
        m_append.append(int(inp[i]))
    array_list.append(m_append)
    
numArray = np.array(array_list)
print(np.mean(numArray, axis= 1))
print(np.var(numArray, axis = 0))
print(round(np.std(numArray), 11))