#include <stdio.h>


int getLengthNum(char* str, int i) {
	int len = 0;
	short cBool = 0;
	do {
		if ((str[i] > 47 && str[i] < 58) || (len == 0 && str[i] == 45)) {
			len++;
			i++;
		}
		else
			cBool = 1;
	} while (cBool == 0);
	return len;
}

void findNumbers(char* str, char* numbers) {
	int len = 0;
	int counter = 0;
	for (int i = 0; i < strlen(str); i++) {
		len = getLengthNum(str, i);
		if (len != 0) {
			for (int j = 0; j < len; j++) {
				numbers[counter] = str[i + j];
				counter++;
			}
			numbers[counter] = ',';
			counter++;
			i += len - 1;
			len = 0;
		}
	}
}

int main() {
	printf("Enter the string: ");
	char str[80];
	gets(str);
	char* numbers = malloc(80);
	findNumbers(str, numbers);
	printf("Result - ");
	int i = 0;
	while (numbers[i] > 0) {
		printf("%c", numbers[i]);
		i++;
	}
}