#write a program that reads one integer and checks if the integer is 
#positive, or negative, or zero

#Input

x=int(input("enter integer "))

#Solution 1 (we will use nested if/else or nested if statements)
print("solution 1")
if(x>0):
	print(x,"is positive")
else:
	if(x<0):
		print(x,"is negative")
	else:
		print(x,"is zero")

#Solution 2 (using if/elif/else statement)

print("solution 2")

if(x>0):
	print(x,"is positive)
elif(x<0):
	print(x,"is negative")
else:
	print(x,"is zero)

#How it works:
#x>0 is evaluated
#if True, x is positive printed and program proceeds to next statement 
#after if/elif/else
#if x>0 is False, the program evaluates the next condition that listed in 
#elif portion, in our case x<0. If x<0 is True, then the statements 
#associated with that are executed, in our case, x is negative will be 
#printed,  and program proceeds to next statement
#after if/elif/else
#if both statements, x>0 and x<0 are False, program executed else 
#statement, in our case it prints x is zero  and program proceeds to next 
#statement after if/elif/else