__int128

链接

__int128 read() {
    __int128 fu, sum;
    int c = getchar();
    while (c > '9' || c < '0') {
        if (c == '-')
            fu = -1;
        c = getchar();
    }
    while (isdigit(c)) {
        sum = sum * 10 + c - '0';
        c = getchar();
    }
}

void print(__int128 x) {
   if(x<0)
   {
       putchar('-');
       x=-x;
   }
   if(x>9) print(x/10);
   putchar(x%10+'0');
}