1 #include 
     
       2 #include 
      
        3 #include 
       
         4 #define rgi register int 5 #define il inline 6 #define ll long long 7  8 using namespace std; 9 10 int a, b;11 12 il int read()13 {14     rgi x = 0, f = 0, ch;15     while(!isdigit(ch = getchar())) f |= ch == '-';16     while(isdigit(ch)) x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();17     return f ? -x : x;18 }19 20 il void write(int x)21 {22     if(x < 0)    putchar('-'), x = -x;23     if(x > 9)    write(x / 10);24     putchar(x % 10 + 48);25 }26 27 int main()28 {29     a = read();30     b = read();31     write(a + b);32     return 0;33 }