How to get ansible sequence number of running

Archives Ansible Project
1

Here is run.yml and rozofs.yml, I want to get the sequence number of each running.

there is 4 IP address, 90,91,92,93, I want to know where I can get 1,2,3,4 from each running. I am use "echo " to put each IP address, I want to the sequence number too.

$ run.yml

---
- hosts: "{{ store }}"
  remote_user: root
  vars_files:
    - /vars/rozofs.yml
  tasks:
    - name: mount fs
      command: echo "{{ inventory_hostname }}" >> /root/temp.sh
    - name: sequence number
      command:  echo ??? >> /root/temp.sh 



$ rozofs.yml
---
store: 192.168.2.90 192.168.2.91 192.168.2.92 192.168.2.93

$ temp.sh
192.168.2.90
1

$ temp.sh
192.168.2.93
4