#Determine	if	input	is	a	triangle	using	triangle	inequality	function
def	is_triangle(a,	b,	c):
    return True	if(a < b + c and b < a + c and c < a + b) else False
def	is_equilateral(a, b, c):
    return True if a ==	b == c else	False
def	is_isosceles(a,	b, c):
    return	True if	a == b or b	== c or	a == c else	False
#Triangle	determiner:
#				Input:	length	of	the	3	edges
#				Output:	Not	a	triangle	|	type	of	triangle
def	main(a,	b, c):
    '''
    a: [0; 10][11;20][20;30]
    b: [0; 10]
    c: [0; 10]
    '''
    if is_triangle(a, b, c):
        if is_equilateral(a, b, c):
            return	'Equilateral triangle'
        elif	is_isosceles(a,	b, c):
            return	'Isosceles triangle'
        else:
            return	'Triangle'
    else:	return	'Not a triangle'