P ms

P msP msP msP ms
P msP msP msP msP msP msP msP ms
P msP msP msP msP msP msP msP msP msP msP msP ms
P msP msP msP msP msP msP msP msP msP msP msP msP msP msP msP ms
P msP msP msP msP msP msP msP ms