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    Program 12: To access string characters.

                          Program12.py

                       File  Edit  Format   Run    Options   Window    Help

                       #Accessing string characters in Python
                       str = 'Orange Education'
                       print('str = ', str)
                       print('str[0] = ', str[0])                 #First character
                       print('str[-1] = ', str[-1])               #Last character

                      You will get the following output:

                          Output

                       str =  Orange Education
                       str[0] =  O
                       str[-1] =  n

                       Program 13: To check whether the triangle given by the user is scalene, isosceles or equilateral.

                          Program13.py
                       File  Edit  Format   Run    Options   Window    Help

                       #Program to check if a triangle is Equilateral, Isosceles or Scalene

                       def triangle(A,B,C):
                           if (A == B == C):
                               print('Equilateral triangle')
                           elif ((A == B) or (B == C) or (A == C)):
                               print('Isosceles triangle')
                           else:

                               print('Scalene triangle')
                       print('Input the sides of the triangle: ')
                       A1 = float(input('A: '))
                       B1 = float(input('B: '))
                       C1 = float(input('C: '))
                       triangle(A1,B1,C1)

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