#include <stdio.h>

static int input_test(void);

int main()
{
    char c1 = 'A';
    char c2 = 'B';
    char c3 = 'C';
    //puts(&c1);

    //char s[] = {'A', 'B', 'C', 0};
    char *s = "hello world";
    printf("hello: %-20s asfqwef\n", s);
    printf("%#d = %#x = %#o\n", 100, 100, 100);

    long long val = 0x1234567890adcdef;
    printf("%#lx\n", val);

    input_test();
    return 0;
}

// ввод символов
static int input_test(void)
{
    char c1, c2;
    //c = getchar();
    //printf("code: %#X: ", c);

    scanf("%c%*c", &c1);
    printf("code1: %d\n", c1);
    
    scanf("%c", &c2);
    printf("code2: %d\n", c2);

    return 0; 
}