#include <stdio.h>
 
int main()
{
    char inputShell;

    while (1)
    {
        printf("cpass> ");
        
        inputShell = getchar();

        while(getc(stdin) != '\n'); // clear stdin ('\n')
 
        if (inputShell == 'q') break;
    }
    
    return 0;
}