#include <stdlib.h>
#include <stdio.h>

#define LINES 1000

int parse_numbers(char *mulString, int *a, int *b)
{
	int i = 4;
	while (mulString[i] >= '0' && mulString[i] <= '9') {
		*a = *a * 10 + mulString[i] - '0';
		i++;
	}
	i++;
	while (mulString[i] >= '0' && mulString[i] <= '9') {
		*b = *b * 10 + mulString[i] - '0';
		i++;
	}
	return 1;
}

int main()
{
	int sum = 0;
	char mulString[32];
	
	FILE *input;
	input = fopen("./inputDemo", "r");
	int a = 0;
	int b = 0;
	while (fscanf(input, "%d,%d", &a, &b)) {
		sum += a * b;
	}
	printf("%d, %d\n", a, b);
	printf("%d\n", sum);
}