# Get the number of temperature readings
n = input("Enter number of temperature readings: ")

# Input validation for n
if not n.isdigit() or int(n) < 1 or int(n) > 100:
    print("Invalid input for number of readings")
else:
    n = int(n)
    temperatures = []
    
    for i in range(n):
        temp_input = input(f"Enter temperature {i+1}: ")
        try:
            temp = float(temp_input)
            if temp < 0:
                print("Invalid Temperature")
            else:
                temperatures.append(temp)
        except ValueError:
            print("Invalid Temperature")
    
    if temperatures:
        print("Valid temperatures:", temperatures)
        average = sum(temperatures) / len(temperatures)
        print("Average temperature:", round(average, 2))
    else:
        print("No valid temperatures entered")