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