clear
insert 0 bob
print
node 0: bob
insert 1 joe
print
node 0: bob
node 1: joe
insert 0 jim
print
node 0: jim
node 1: bob
node 2: joe
insert 1 ned
print
node 0: jim
node 1: ned
node 2: bob
node 3: joe
insert 3 zed
print
node 0: jim
node 1: ned
node 2: bob
node 3: zed
node 4: joe