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

char s[100];
double number[2];
int a[30],b[30];


main(){
for( int j=0;j<=1;j++){

int point=0 , digit_b=-1 , count=0, digit_a=-1;
printf(" Enter an string number : " );
gets(s);

while(s[count]!='\0'){

		if( s[count] == '.' ) point =1 ;

		if( '0' <=s[count] && s[count]<= '9'  ){

			 if ( point ) b[++digit_b] = s[count]-48 ;
			 else         a[++digit_a] = s[count]-48 ;


				      }//if

	count++;

		      }//while

for(int i=digit_a ; i>=0  ;i--)
number[j] = number[j] +a[i]*pow(10,digit_a-i) ;

for(i=digit_b ; i>=0  ;i--)
number[j] = number[j] + b[i]*pow(10,-i-1) ;

if(s[0]=='-')number[j]*=-1;

							}//for

printf("plus = %lf  mines = %lf",number[1]+number[0],number[1]-number[0]);
getch();
return 0;
}