#
# if, if...else, if...elif...else 
#
# Practice 
#

# Preliminary notes: 
- Presumed knowledge 
- Use only the studied material 

# Q. 1
# Write a program that receives a float and prints
# POSITIVE if it is positive, NON-POSITIVE otherwise. 

num = float(input("Plase enter a decimal number: "))
if num > 0:
    print("Positive")
else: 
    print("Non-positive")
print("THE END")


# Q. 2
# Write a program that receives two strings, s1 and s2, 
# and prints EQUAL if they are equal, DIFFERENT otherwise. 

s1 = input("Plase enter any string: ")
s2 = input("Plase enter any string: ")
if s1 == s2: 
    print("EQUAL")
else: 
    print("DIFFERENT")
print("THE END")


# Q. 3
# Noa plans to subscribe to the New York Times. 
# Monthly subscription costs 5 dollars. 
# 1 dollar reduction is given if 
#    (subscriber-s age is under 20 
#     and 
#     subscription is to more than 12 months)
#    or 
#    (age is above 60 
#     and 
#     subscription is to at least 6 months). 
# Write a program that receives Noa-s age 
# and number of subscription monthes, 
# and then prints the cost of her subscription. 

age = int(input("Please enter your age: ")) 
months = int(input("Please enter number of months: "))
monthlyPayment = 5 
if (age < 20 and months > 12) or (age > 60 and months >= 6): 
    monthlyPayment = 4
totalCost = months * monthlyPayment
print(totalCost)

 
 
# Q. 4 
# Write a program that receives two integers, 
# num1 and num2, and prints YES if num2 divides
# num1 without a reminder, NO otherwise. 

num1 = int(input("PLease enter an integer: "))
num2 = int(input("PLease enter an integer: "))
if num1 % num2 == 0:
    print("YES")
else: 
    print("NO")
print("THE END")
    
 
# Q. 5
# Write a program that receives two numbers, 
# num1 and num2, different one from another, 
# and prints the bigger number, then the smaller, 
# each in a seprate line. 

num1 = int(input("PLease enter an integer: "))
num2 = int(input("PLease enter a different integer: "))
if num1 > num2: 
    print(num1)
    print(num2)
else: 
    print(num2)
    print(num1)
print("THE END")



 
# Q. 6 
# One scoop of chocolate ice cream costs 5 NIS, 
# unless you buy more than 3 scoops. In that case
# a scoop costs 2 NIS. 
# Write a program that receives a number of scoops
# and prints their total cost. 

scoopPrice = 5 
scoopsNum = int(input("Please enter number of scoops: "))
if scoopsNum > 3: 
    scoopPrice = 2 
print("Total cost of scoops is: ", scoopsNum * scoopPrice)


# Q. 7 
# In your friend-s school grades are marked 
# by the letters A, B, C, D, E and F. 
# Write a program that receives a letter and 
# prints OK if it is a grade mark, NO otherwise. 

s = input("Please enter any string: ")
if (s == "A" or s == "B" or s == "C" or 
    s == "D" or s == "E" or s == "F"): 
    print("OK")
else: 
    print("NO")
print("THE END")




# Q. 8 
# Write a program that receives two integers, 
# num1 and num2, and prints OK if one is consecutive 
# to the other, NO otherwise. 

num1 = int(input("Please enter an integer: "))
num2 = int(input("Please enter an integer: "))
if  num1 + 1 == num2 or num2 + 1 == num1: 
    print("OK")
else: 
    print("NO")
print("THE END")

# if  num2 - num1 == 1 or num1 - num2 == 1: 

   

# Q. 9 
# Write a programm that receives three intengers 
# representing a series, a1, a2 and a3. 
# The program will print DESCENDING if the 
# series is descending, NON DESCENDING otherwise. 

a1 = int(input("Please enter an integer: "))
a2 = int(input("Please enter an integer: "))
a3 = int(input("Please enter an integer: "))
if a1 > a2 and a2 > a3: 
    print("descending")
else: 
    print("non-descending")
print("THE END")


1, 2, 3 
2, 4, 6 
3, 6, 9 
3, 2, 1 



 
# Q. 10
# Write a program that receives a three-digit 
# integer. It prints PLAINDROME if the number
# is a palindrome, NO otherwise. 

num = int(input("Please enter a three-digit integer: "))
if num % 10 == num // 100: 
    print("PALINDROME")
else: 
    print("NO")
print("THE END")

79797
1221

123 % 10 

print(797 // 100)


# Q. 11
# Write a program that receives a three digit number. 
# The program prints: 
# 1 - if the ones digit is 5 
# 2 - if the tens digit is odd 
# 3 - if the hundreds digit divides by 3 with no reminder. 
# if neither 1, nor 2, nor 3 are printed, the program :
# print PERHAPS NEXT TIME. 


num = int(input("Please enter a three-digit integer: "))
if num % 10 == 5: 
    print(1)
elif ((num % 100) // 10) % 2 == 1: 
    print(2)
elif (num // 100) % 3 == 0: 
    print(3)
else: 
    print("PERHAPS NEXT TIME")
print("THE END")



# Q. 12
# Write a program that receives three numbers
# and prints them, in one line, from the smallest
# to the biggest. 

num1 = int(input(input("Please enter an integer: ")))
num2 = int(input(input("Please enter an integer: ")))
num3 = int(input(input("Please enter an integer: ")))

9 , 7, 3 

if num1 < num2: 
    if num2 < num3: 
        print(num1, num2, num3)
    else: 
        if num1 < num3: 
            print(num1, num3, num2) 
        else: 
            print(num3, num1, num2)
else: 


Q. 13
Write a program that receives two three-digit 
numbers, num1 and num2, and prints EQUAL 
if all digits of num1 appear in num2, 
UNEQUAL otherwise. 
     

num1 = int(input("Please enter a three-digit integer: "))
ones1 = num1 % 10 
tens1 = (num1 % 100) // 10
hundreds1 = num1 // 100 
print(ones1, tens1, hundreds1)
num2 = int(input("Please enter a three-digit integer: "))
ones2 = num2 % 10 
tens2 = (num2 % 100) // 10
hundreds2 = num2 // 100
print(ones2, tens2, hundreds2)
result = "UNEQUAL"
if ones1 == ones2 or ones1 == tens2 or ones1 == hundreds2: 
    if tens1 == ones2 or tens1 == tens2 or tens1 == hundreds2: 
        if hundreds1 == ones2 or hundreds1 == tens2 or hundreds1 == hundreds2: 
            result = "EQUAL"
print(result )



583 335 



if (5 == 5): 
    if (3 == 5): 
        if (5 == 5): 
            print("SOMETHING")
        else: 
            print("ERROR")
    else: 
        print("ERROR")
else: 
    print("ERROR")
print("THE END")