date	node-0	node-1
date	node-0	node-2
date	node-1	node-0
date	node-1	node-2
date	node-2	node-0
date	node-2	node-1
date	node-6	node-7
date	node-6	node-2
date	node-7	node-6
date	node-7	node-2
date	node-2	node-6
date	node-2	node-7