main(){
	int a[2] = {};
	int index = 0;
	int bfirstNoneBlank = 0;
	char c;
	while((c=getchar())!=-1){
		if(' '==c||'\t'==c)
			index = bfirstNoneBlank;
		else if('\n'==c){
			if(bfirstNoneBlank){
				printf("%d\n",a[0]+a[1]);
				index = 0;
				a[0] = 0;
				a[1] = 0;
				bfirstNoneBlank = 0;
			}
		}
		else {
		    bfirstNoneBlank = 1;
		    a[index] *= 10;
		    a[index] += c - '0';			
		}
	}
}