You are working in Cloud Shell with the following active gcloud configuration:

$ gcloud config list
[component_manager]
disable_update_check = True
[compute]
gce_metadata_read_timeout_sec = 5
zone = europe-west2-a
[core]
account = gcp-ace-lab-user@gmail.com
disable_usage_reporting = False
project = gcp-ace-lab-266520
[metrics]
environment = devshell

$ gcloud config list
[component_manager]
disable_update_check = True
[compute]
gce_metadata_read_timeout_sec = 5
zone = europe-west2-a
[core]
account = gcp-ace-lab-user@gmail.com
disable_usage_reporting = False
project = gcp-ace-lab-266520
[metrics]
environment = devshell

Your task is to create two compute instances – one in europe-west2-a and another in europe-west2-b. Which two commands should you use?_