View Code of Problem 50

#include<stdio.h>
#include<string.h>
int main()
{
	char a[90],b[90];
	int i,j=0,mutex = 1;
	gets(a);
	for(i=0;i<strlen(a);i++)
	{
		if(a[i]>='0'&&a[i]<='9')
		{
			b[j++] = a[i];
			mutex = 1;
		}
		else 
		{
			if(mutex == 1)
			{
				b[j++] = '*';
				mutex = 0;
			}
		}
	}
	b[j] = '\0';
	puts(b);
}