Hi, guys!
It is me 

I have a new problem with coding...
I cannot enter any russian char in any text file in my C::B!!!
I do not know, maybe it is because of updating (apt-get update/upgrade)...
Maybe it is binded with Ctrl-C/Ctrl-V problems...
Mint 19.3.
koluna@intel:~$ uname -a
Linux intel 5.4.0-52-generic #57~18.04.1-Ubuntu SMP Thu Oct 15 14:04:49 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
koluna@intel:~$ inxi -F
System:    Host: intel Kernel: 5.4.0-52-generic x86_64 bits: 64 Desktop: MATE 1.22.2 Distro: Linux Mint 19.3 Tricia 
Machine:   Type: Desktop Mobo: Intel model: DH67CL v: AAG10212-207 serial: <root required> UEFI: Intel 
           v: BLH6710H.86A.0119.2011.0523.1030 date: 05/23/2011 
CPU:       Topology: Dual Core model: Intel Core i3-2130 bits: 64 type: MT MCP L2 cache: 3072 KiB 
           Speed: 1795 MHz min/max: 1600/3400 MHz Core speeds (MHz): 1: 1771 2: 1822 3: 1836 4: 1974 
Graphics:  Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics driver: i915 v: kernel 
           Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa resolution: 1600x900~60Hz 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 2000 (SNB GT1) v: 3.3 Mesa 20.0.8 
Audio:     Device-1: Intel 6 Series/C200 Series Family High Definition Audio driver: snd_hda_intel 
           Sound Server: ALSA v: k5.4.0-52-generic 
Network:   Device-1: Intel 82579V Gigabit Network driver: e1000e 
           IF: eno1 state: up speed: 100 Mbps duplex: full mac: e0:69:95:f5:58:59 
Drives:    Local Storage: total: 465.76 GiB used: 77.61 GiB (16.7%) 
           ID-1: /dev/sda vendor: Hitachi model: HDP725050GLA360 size: 465.76 GiB 
Partition: ID-1: / size: 76.40 GiB used: 10.75 GiB (14.1%) fs: ext4 dev: /dev/sda2 
           ID-2: /home size: 372.37 GiB used: 66.86 GiB (18.0%) fs: ext4 dev: /dev/sda4 
           ID-3: swap-1 size: 7.81 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda3 
Sensors:   System Temperatures: cpu: 33.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Info:      Processes: 221 Uptime: 3h 55m Memory: 7.68 GiB used: 1.79 GiB (23.3%) Shell: bash inxi: 3.0.32 
koluna@intel:~$ locale -a
C
C.UTF-8
en_AG
en_AG.utf8
en_AU.utf8
en_BW.utf8
en_CA.utf8
en_DK.utf8
en_GB.utf8
en_HK.utf8
en_IE.utf8
en_IL
en_IL.utf8
en_IN
en_IN.utf8
en_NG
en_NG.utf8
en_NZ.utf8
en_PH.utf8
en_SG.utf8
en_US.utf8
en_ZA.utf8
en_ZM
en_ZM.utf8
en_ZW.utf8
POSIX
ru_RU.utf8