Description

A blue pipe is connected to a red pipe, and the red pipe is connected to a yellow pipe. The yellow pipe is connected to a silver pipe, and the silver pipe is connected to a blue pipe. The blue pipe is connected to a red pipe, and the red pipe is connected to a yellow pipe. The yellow pipe is connected to a silver pipe, and the silver pipe is connected to a blue pipe. The blue pipe is connected to a red pipe, and the red pipe is connected to a yellow pipe. The yellow pipe is connected to a silver pipe, and the silver pipe is connected to a blue pipe. The blue pipe is connected to a red pipe, and the red pipe is connected to a yellow pipe. The yellow pipe is connected to a silver pipe, and the silver pipe is connected to a blue pipe. The blue pipe is connected to a red pipe, and the red pipe is connected to a yellow pipe. The yellow pipe is connected to a silver pipe, and the silver pipe is connected to a blue pipe. The blue pipe is connected to a red pipe, and the red pipe is connected to a yellow pipe. The yellow pipe is connected to a silver pipe, and the silver pipe is connected to a blue pipe. The blue pipe is connected to a red pipe, and the red pipe is connected to a yellow pipe. The yellow pipe is connected to a silver pipe, and the silver pipe is connected to a blue pipe. The blue pipe is