Sorting 5 numbers ( still error num5 need to fix ASAP)

#include <iostream>
using namespace std;

// road to Unoooooooooooooooooooooooooooooooo!

int main (){
int num1, num2, num3, num4, num5;
int temp1, temp2, temp3, temp4, temp5;

cout << "sort the numbers into their descending order. " << endl << endl;

// prompt user to enter 5 random integers
cout << "Enter the 5 integers that you wish to sort: " << endl;

cin >> num1 >> num2 >> num3 >> num4 >> num5;

int firstNum, secondNum, thirdNum, fourthNum, fifthNum; // declare the firstNum, secondNum, thirdNum, fourthNum, fifthNum

// Start of firstNumber
	if (num1 > num2 && num1 > num3 && num1 > num4 && num1 > num5){
        firstNum = num1;
	} else if (num2 > num1 && num2 > num3 && num2 > num4 && num2 > num5){
		secondNum = num2;
	} else if (num3 > num1 && num3 > num2 && num3 > num4 && num3 > num5){
		thirdNum = num3;
	} else if (num4 > num1 && num4 > num2 && num4 > num3 && num4 > num5){
		fourthNum = num4;
	} else if (num5 > num1 && num5 > num2 && num5 > num3 && num5 > num4){
		fifthNum = num5;
	}
// end of firstNumber

// start of fourthNumber

	if (num1 < num2 && num1 < num3 && num1 < num4 && num1 < num5){
		fourthNum = num1;
	}
	else if (num2 < num1 && num2 < num3 && num2 < num4 && num2 < num5){
		fourthNum = num2;
	}
	else if (num3 < num1 && num3 < num2 && num3 < num4 && num3 < num5){
		fourthNum = num3;
	}
	else if (num4 < num1 && num4 < num2 && num4 < num3 && num4 < num5){
		fourthNum = num4;
	}
	else if (num5 < num1 && num5 < num2 && num5 < num3 && num5 < num4){
		fourthNum = num5;
	}
// end of fourthNumber

// start of secondNumber
if (num1 != firstNum && num1 != fourthNum && num1 != fifthNum){
	temp1 = num1;
}
if (num2 != firstNum && num2 != fourthNum && num1 != fifthNum){
	temp2 = num2;
}
if (num3 != firstNum && num3 != fourthNum && num1 != fifthNum){
	temp3 = num3;
}
if (num4 != firstNum && num4 != fourthNum && num1 != fifthNum){
	temp4  = num4;
}
if (num5 != firstNum && num5 != fourthNum && num1 != fifthNum){
	temp5 = num5;
}

if (temp1 > temp2 && temp1 > temp3 && temp1 > temp4 && temp1 > temp5){
	secondNum = num1;
} else if (temp2 > temp1 && temp2 > temp3 && temp2 > temp4 && temp2 > temp5){
	secondNum = num2;
} else if (temp3 > temp1 && temp3 > temp2 && temp3 > temp4 && temp3 > temp5){
	secondNum = num3;
} else if (temp4 > temp1 && temp4 > temp2 && temp4 > temp3 && temp4 > temp5){
	secondNum = num4;
} else if (temp5 > temp1 && temp5 > temp2 && temp5 > temp3 && temp5 > temp4){
	secondNum = num5;
}
// end of SecondNumber

// Start of thirdNumber
	if (num1 != firstNum && num1 != secondNum && num1 != fourthNum && num1 != fifthNum ){
		thirdNum = num1;
	}
	else if (num2 != firstNum && num2 != secondNum && num2 != fourthNum && num2 != fifthNum){
		thirdNum = num2;
	}
	else if (num3 != firstNum && num3 != secondNum && num3 != fourthNum && num3 != fifthNum){
		thirdNum = num3;
	}
	else if (num4 != firstNum && num4 != secondNum && num4 != fourthNum && num4 != fifthNum){
		thirdNum = num4;
	}
	else if (num5 != firstNum && num5 != secondNum && num5 != fourthNum && num5 != fifthNum){
		thirdNum = num5;
	}
// end of thirdNumber

// start of fifthNum

	if (num1 != firstNum && num1 != secondNum && num1 != thirdNum && num1 != fourthNum){
		fifthNum = num1;
	}
	else if (num2 != firstNum && num2 != secondNum && num2 != thirdNum && num2 != fourthNum){
		fifthNum = num2;
	}
	else if (num3 != firstNum && num3 != secondNum && num3 != thirdNum && num3 != fourthNum){
		fifthNum = num3;
	}
	else if (num4 != firstNum && num4 != secondNum && num4 != thirdNum && num4 != fourthNum){
		fifthNum = num4;
	}
	else if (num5 != firstNum && num5 != secondNum && num5 != thirdNum && num5 != fourthNum){
		fifthNum = num5;
	}

	cout << "\n" << "The ascending order for the 5 numbers you just entered are: " << endl;
	cout << firstNum << " " << secondNum << " " << thirdNum << " " << fourthNum << " " << fifthNum << endl;
}