1. What will be the output of the following program? Explain.
a = 2*3-6
print(a) 

Answer: 0
Explanation: step 1: 2*3=6
step 2: 6-6 =0
Multiplication has higher priority, its executed first

2. What will be the output of the following program? Explain.
a = 2**3-6*2
b=2%3
print(a)
print(b) 

Explanation: 1. 2**3=8, 2. 6*2=12, 3. 8-12=-4, a=-4
b=2%3=2
Answer: 
-4
2

3. What will be the output of the following program? Explain.
a = 7/2 = 3.5 regular division
b=7//2 = 3 integer division
c=7%2 = 1 remainder
sum=a+b+c sum=3.5+3+1=7.5 - float number
print(a) 3.5
print(b)  3
print(c) 1
print(sum) 7.5

Final output:
3.5
3
1
7.5

4. What will be the output of the following program? Explain.
a = 123
b=123%10 = 3
c=123//10 = 12
d=c%10 = 12%10=2
e=c//10 = 12//10=1
k=e%10 = 1%10=1
sum=b+d+k = 3+2+1=6
print(a)
print(b)
print(c)
print(d)
print(e)
print(k)
print(sum)  
Output:
123
3
12
2
1
1
6

What this program is calculating? This program finds sum of digits of the 
number 123, which is 1+2+3=6

5. What will be the output of the following program? Explain.
a = 257
b=257%2 = 1
c=257//2 = 128
d=257/2 = 128.5
e=((a-b)%2 - 3)**2 
1. (a-b) = 257-1=256
2. (a-b)%2=256%2=0
3.((a-b)%2 - 3)=(0-3)=-3
4.(-3)**2=9
e=9
product=e*10=9*10=90
print(a)
print(b)
print(c)
print(d)
print(e)
print(product) 
output:
257
1
128
128.5
9
90

6. For the program below, answer the following questions:

    How many variables are in this program? 8
    For each variable, write NAME, TYPE and VALUE. Provide brief 
explanation. 


X = "C++"
C = "Java"
D = C+X
E = 15, name is E, value is 15, type - integer
K = 2, name is K, value is 2, type - integer
M = E/K=15/2=7.5, name is M, value is 7.5, type is float
Y = E//K**2 = 15//2**2= 15//(2**2)=15//4=3, name Y, value 3, type integer
Z = Y%10 = 3%10 = 3, name Z, value 3, type integer