failed vCenter account management password during initial vxrail build process

Hi Experts, 

I'm going to vxrail initial build with embeded vcenter. But I got a failed in vcenter account management password portion. I used password such as "DMware1!" and "DMware1_" in vcenter account management password. But This got failed two times. Could you Please let me know password example to pass password rules ?. 

The vxrail build environment is Standard Cluster deploy and vxrail 7.0.241 with embeded vcenter. 

Thanks always.