n, m = int(input()), int(input())
matrix = [[int(i) for i in input().split()] for j in range(n)] # заполняем таблицу n * m
change_1, change_2 = int(input()), int(input())
for i in range(n):
matrix[i][change_1], matrix[i][change_2] = matrix[i][change_2], matrix[i][change_1]
print(*[print(*[matrix[i][j] for j in range(m)]) for i in range(n)], sep='\n')
