PING school57.ru (104.21.10.171) 56(84) bytes of data.
64 bytes from 104.21.10.171 (104.21.10.171): icmp_seq=1 ttl=60 time=4.18 ms
64 bytes from 104.21.10.171 (104.21.10.171): icmp_seq=2 ttl=60 time=4.11 ms
64 bytes from 104.21.10.171 (104.21.10.171): icmp_seq=3 ttl=60 time=4.13 ms

--- school57.ru ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.117/4.146/4.185/0.059 ms