How would I make this C++ run without using "using namespace std;?"

#include using namespace std; int main(){ int pennies,nickel,quarter,dime; //taking quartes as input cout << "Enter number of quarters: " ; cin >> quarter; //taking dimes as input cout << "Enter number of dimes: "; cin >> dime; //taking nickels as input cout << "Enter number of nickels: "; cin >> nickel; //taking pennies as input cout << "Enter number of pennies: "; cin >> pennies; //calculating number of coins by summingup all coins cout << "You entered ith 6 quarter(s), 7 dime(s), 3 nickel(s) and 3 penn(y/ies)" << quarter+dime+nickel+pennies << " coins" <