#include<math.h>
main()
{float num1,num2;
char op;
while(1)
{printf("Input number,operator,number\n");
scanf("%f%c%f",&num1,&op,&num2);
if(op=='+')printf("=%f",num1+num2);
else if(op=='-')printf("=%f",num1+num2);
else if(op=='-')printf("=%f",num1+num2);
else if(op=='-')printf("=%f",num1+num2);