#!/bin/bash
echo -n "Enter your university login: "
read -e USER

for i in {0..71}; do expect -c 'spawn ssh username@mac1-'`printf "%03d" $i`' \"users\" ; expect -timeout 1 RSA { send "yes\n"; } ; expect Password { send "password\n" } ; interact' ; done

# replace username in usename@mac1 with your username
# replace password in send "password\n" with your password
# replace command in \"command\" with your command

# note: sometimes expect will get confused when ssh asks to verify the host ingerprint. Once these have all been answered with 'yes', things work better.