#Number 3
print("Hello")
num1=int(input("Enter number 1:"))
num2=int(input("Enter number 2:"))
num3=int(input("Enter number 3:"))
num4=int(input("Enter number 4:"))
sum=int(num1)+int(num2)+int(num3)
print("Total of {0}+{1}+{2}+{3}={4}".format(num1,num2,num3,num4,sum))
print("Goodbye")

#Number 4
print("Hello")
num1=int(input("Enter number 1:"))
num2=int(input("Enter number 2:"))
num3=int(input("Enter number 3:"))
if num3<0
print("You cannot input a negative numer")
num4=int(input("Enter number 4:"))
num5=int(input("Enter number 5:"))
num6=int(input("Enter number 6:"))
num7=int(input("Enter number 7:"))
sum=int(num1)+int(num2)+int(num4)+int(num5)+int(num6)
print("Total of {0}+{1}+{2}+{3}+{}+{}+{}={}".format(num1,num2,num4,num5,num6,sum))
print("Goodbye")