Input/output while debugging with GDB in WSL

I've started working with Visual Studio Code on Windows & I want to debug the following file

main.c (located at C:/Users/aibrakov/Projects/c directory):

#include <stdio.h>

int main(void) {
    int x = 42;  // add breakpoint here
    printf("Hello World!\n");
    getchar();
    return 0;
}

Following this threads

• C\C++ in VS Code with Linux Subsystem For Windows
• Visual Studio Code and Bash on Ubuntu on Windows (WSL) GCC/GDB integration

I have

settings.json:

{
    "window.zoomLevel": 0,
    "terminal.integrated.shell.windows": "c:\\windows\\sysnative\\bash.exe"
}

tasks.json:

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "Build project",
            "type": "shell",
            "command": "gcc",
            "args": [
                "-g", "main.c"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            }
        }
    ]
}

launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "C++ Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "/mnt/c/Users/aibrakov/Projects/c/a.out",
            "stopAtEntry": false,
            "cwd": "/mnt/c/Users/aibrakov/Projects/c",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "pipeTransport": {
                "pipeCwd": "",
                "pipeProgram": "c:\\windows\\sysnative\\bash.exe",
                "pipeArgs": [
                    "-c"
                ],
                "debuggerPath": "/usr/bin/gdb"
            },
            "sourceFileMap": {
                "/mnt/c": "c:\\"
            }
        }
    ]
}

Building project with Ctrl + Shift + B succeeds.

Debugging kinda works: it stops on breakpoints and DEBUG CONSOLE tab is accessible, but I don't get output (Hello World! in my example) and also can't send character which getchar awaits.

Is there a way to work with the terminal in which my program is running? Or am I missing something?