з1

sm=[0]*m
for j in range(m):
  s=0
  for i in range(n):
    s+=a[i][j]
  sm[j]=s
mx_j=0
for j in range(1,m):
  if sm[j]>=sm[mx_j]:
    mx_j=j
for i in range(n):
  a[i][mx_j]=x[i]