4 nodes A\A;
Install Instances
SQL01\INST1
SQL02\INST2
SQL03\INST3
SQL04\INST4
then install the biniares (add node) on each sql server;
biniares for 2,3,4 on node1
biniares for 1,3,4 on node2
biniares for 1,2,4 on node3
biniares for 1,2,3 on node4
MCSE SQL Server 2012\2014\2016