去除以下IP列表中的重复网段并去除每个IP第4个字段并按从小到大的顺序排序：213143101978215187118902032501775119231721942071961747710339207817910110962252232108261518684681521229240189568681452031947359022250177852349217356624214694173139

2.27.149.0 5.65.159.0 31.94.2.0 31.94.23.0 31.94.65.0 31.94.73.0 51.14.159.0 51.19.23.0 51.190.234.0 51.198.248.0 77.101.84.0 77.103.39.0 78.86.32.0 78.148.29.0 80.43.69.0 80.189.255.0 81.79.101.0 81.104.0.0 82.6.151.0 82.10.100.0 82.15.187.0 82.22.152.0 84.66.24.0 84.68.152.0 85.234.92.0 85.255.233.0 86.5.78.0 86.8.145.0 86.12.121.0 86.20.204.0 86.22.177.0 86.24.3.0 86.132.222.0 86.135.177.0 86.142.63.0 86.142.213.0 86.147.2.0 86.151.89.0 86.163.178.0 86.165.18.0 86.180.158.0 86.184.127.0 86.190.225.0 88.104.7.0 88.104.176.0 90.198.248.0 90.203.250.0 90.205.4.0 90.222.50.0 90.254.177.0 92.0.242.0 92.40.189.0 92.40.200.0 92.40.214.0 137.220.110.0 149.12.14.0 151.227.112.0 151.228.104.0 194.207.196.0 195.175.74.0 213.143.10.0 94.192.49.0 94.3.129.0 94.173.139.0 2.221.217.0

去除第4个字段：

2.27.149 5.65.159 31.94.2 31.94.23 31.94.65 31.94.73 51.14.159 51.19.23 51.190.234 51.198.248 77.101.84 77.103.39 78.86.32 78.148.29 80.43.69 80.189.255 81.79.101 81.104.0 82.6.151 82.10.100 82.15.187 82.22.152 84.66.24 84.68.152 85.234.92 85.255.233 86.5.78 86.8.145 86.12.121 86.20.204 86.22.177 86.24.3 86.132.222 86.135.177 86.142.63 86.142.213 86.147.2 86.151.89 86.163.178 86.165.18 86.180.158 86.184.127 86.190.225 88.104.7 88.104.176 90.198.248 90.203.250 90.205.4 90.222.50 90.254.177 92.0.242 92.40.189 92.40.200 92.40.214 137.220.110 149.12.14 151.227.112 151.228.104 194.207.196 195.175.74 213.143.10 94.192.49 94.3.129 94.173.139 2.221.217

排序：

2.27.149 5.65.159 31.94.2 31.94.23 31.94.65 31.94.73 51.14.159 51.19.23 51.190.234 51.198.248 77.101.84 77.103.39 78.86.32 78.148.29 80.43.69 80.189.255 81.79.101 81.104.0 82.6.151 82.10.100 82.15.187 82.22.152 84.66.24 84.68.152 85.234.92 85.255.233 86.5.78 86.8.145 86.12.121 86.20.204 86.22.177 86.24.3 86.132.222 86.135.177 86.142.63 86.142.213 86.147.2 86.151.89 86.163.178 86.165.18 86.180.158 86.184.127 86.190.225 88.104.7 88.104.176 90.198.248 90.203.250 90.205.4 90.222.50 90.254.177 92.0.242 92.40.189 92.40.200 92.40.214 94.192.49 94.3.129 94.173.139 137.220.110 149.12.14 151.227.112 151.228.104 194.207.196 195.175.74 213.143.10 2.221.21