def generate_pattern(n):
    n = abs(n)
 
    if n < 3 or n % 2 == 0:
    	print("The input must be an odd number greater than or equal to 3")
        return
 
    matrix = [["e" for _ in range(n)] for _ in range(n)]
 
    center = n // 2
    for i in range(n):
        matrix[i][center] = "*"
 
    for i in range(n):
        matrix[center][i] = "e"
 
    for row in matrix:
        print(" ".join(row))
generate_pattern(5)
print()
generate_pattern(7)
print()
generate_pattern(-9)

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