#include <stdio.h>

// 验证成功返回 1，否则返回 0
int f(const char *s)
{
    int k = 1;
    int sum = 0;
    int i;
    for (i = 0; s[i] != '\0'; i++)
    {
        char c = s[i];
        if (c == '-' || c == ' ')
            continue;
        sum += k % 2 == 1 ? (c - '0') * 3 : (c - '0');
        k++;
        if (k > 12)
            break;
    }

    while (s[i] != '\0')
        i++;

    return (s[i - 1] - '0') == (10 - sum % 10) % 10;
}

int main()
{
    printf("%d\n", f("978-7-301-04815-3"));
    printf("%d\n", f("978-7-115-38821-6"));
    return 0;
}