View Code of Problem 50

#include <stdio.h>
int main()
{
	char str1[80], str2[80];
	gets(str1);
	int i, j=0;
	for (i = 0; i < strlen(str1); i++)
	{
		if (str1[i] >= '0' && str1[i] <= '9')
		{
			str2[j] = str1[i];
			j++;
			continue;
		}
		else if (i == strlen(str1) - 1)
		{
			str2[j++] = '*';
			continue;
		}
		else if (str1[i + 1] >= '0' && str1[i+1] <= '9')
			str2[j++] = '*';
		else
			continue;
	}
	for (i = 0; i < j; i++)
	{
		printf("%c", str2[i]);
		if (i == j - 1)
			printf("\n");
	}
	return 0;
}