def maxArea(height):
    left, right = 0, len(height) - 1
    max_water = 0
    
    while left < right:
        
        water = (right - left) * min(height[left], height[right])
        max_water = max(max_water, water)
        
        if height[left] < height[right]:
            left += 1
        else:
            right -= 1
    
    return max_water


print(maxArea([1,8,6,2,5,4,8,3,7]))  # Output: 49
print(maxArea([1,1]))  # Output: 1