#include <iostream>
#include <cstdio>
int main(){
  int ch;
  double result = 0;
  cout << "input characters: ";
  while( (ch=getchar())!='\n' && (ch != '.') )
  {
	result = 10*result + (ch - '0');
  }
  int exponent = 0;
  if(ch == '.')
  while( (ch=getchar())!='\n' )
  {	exponent = exponent +1;
	result = 10*result + (ch - '0');
  }
  while(exponent > 0)
  {
	result = result /10.0;
	exponent= exponent -1;
  }
  cout << endl << "Result = " << result << endl;
  return 0;
}