efef

n = int(input())
m = int(input())
l = [list(map(int, input().split())) for i in range(n)]
num = 0
for i in l:
    for j in i:
        if j % 3 == 0 and j % 2 != 0:
            num += 1

print(num)

n_verh = n//2
minn = l[0][0]
index_min = [0,0]
for i in range(n_verh):
    for j in range(m):
        if l[i][j] < minn:
            minn = l[i][j]
            index_min = [j,i]
l[index_min[0]][index_min[1]],l[n-1][0] = l[n-1][0], l[index_min[0]][index_min[1]]
print(l)