#include <stdio.h>
#include <string.h>
int main() {
    char foo[4] = "foo";
    char bar[4] = "bar";

    printf("foo ist %d Zeichen lang\n", (int)strlen(foo));

    printf("foo: %s \n", foo);
    printf("bar: %s \n", bar);

    char foobar[7];
    strcpy(foobar, foo);
    printf("foobar: %s \n", foobar);

    strcat(foobar, bar);
    printf("foo ++ bar -> foobar: %s \n", foobar);

    if (strcmp(foo, bar) == 0) {
        printf("foo = bar \n");
    }
    else {
        printf("foo != bar \n");
    }

    return 0;
}