#include <stdio.h>

int main(int argc, const char * argv[]) {
    // init & input
    char c;
    int a[2];
    int ans;
    int space, temp, flag;
        space=0; temp=0; flag=0;
        printf("input number1 number2\n");
        while((c=getchar())!='\n') {
            if (c==' ') {
                a[space] = temp ;
                space++;
                temp = 0;
                flag = 0;
            }
            else {
                flag = 1;
                temp = temp * 10 + (c-48);
            }
        }
        if(flag)
            a[space] = temp;
        ans = a[0] + a[1];
        printf("%d ", ans);
}