abcdefghijklmnop
1      ▆▄▃▁  
2 ▄◣◥◤◤ ▄▃
3◢0 ◣  ! ▋b ◥
4o◤ ▋◥  ◢ ◣ 
5      ＼◢◤/◥ 
6 ◢   ◣′▍    

 abcdefghijklmnop
1      ▆▄▃▁  
2 ▄◣◥◤◤ ▄▃
3◢O ◣  ! ▋b ◥
4O◤ ▋◥  ◢ ◣ 
5      ＼◢◤/◥ 
6 ◢   ◣  ▍    

 一:4a  二:3c  三:6ij