#include <iostream>
#include <cstdlib>

using namespace std;

int main(int argc, char *argv[])
{  system("chcp 1253");
   
  int a,b,c;           /* ακέραιες μεταβλητές */
  a = 12;    b = 3;   /* ανάθεση τιμών στα a,b */
  printf("a=%d,b=%d\n", a,b);
  /* Πράξεις και αναθέσεις τιμής στην c */
  c = a + b;
  cout << "a="<<a<<"  b="<<b<<"  a+b="<<c<<endl;
  c = a - b;
  cout << "a="<<a<<"  b="<<b<<"  a-b="<<c<<endl;
  c = a * b;
  cout << "a="<<a<<"  b="<<b<<"  a*b="<<c<<endl;
  c = a / b;
  cout << "a="<<a<<"  b="<<b<<"  a/b="<<c<<endl;
  c = a % b;
  cout << "a="<<a<<"  b="<<b<<"  a%b="<<c<<endl;
  c = 12*a + b/2 - a*b*2/(a*c + b*2);
  cout << "a="<<a<<"  b="<<b<<"  12*a+b/2-a*b*2/(a*c+b*2)="<<c<<endl;
  c = c/4+13*(a + b)/3 - a*b + 2*a*a;
  cout << "a="<<a<<"  b="<<b<<"  c/4+13*(a+b)/3-a*b+2*a*a="<<c<<endl;
  a = a + 1;
  cout << "a="<<a<<"  b="<<b<<"  c="<<c<<endl;
  b = b * 5;
  cout << "a="<<a<<"  b="<<b<<"  c="<<c<<endl;
  a = b = c = 20;
  cout << "a="<<a<<"  b="<<b<<"  c="<<c<<endl;
  a = b = c = 12*13/4;
  cout << "a="<<a<<"  b="<<b<<"  c="<<c<<endl;

   system("PAUSE");
   return 0;
}