calisma_4.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
int main()
{
	char *s,*p;
	int i,k=0;
	s="+,- 1234";
	p=malloc(strlen(s));
	for (i = 0; i < strlen(s); i++){
		if (s[i] >= '0' && s[i] <= '9')
			p[k++] = s[i];
	
	}
		printf("+%s\n",p);
		printf("-%s",p);
	return 0;
}