class NoSuchStudentException(Exception):
    pass


class Garden:
    DEFAULT_STUDENTS = ["Alice", "Bob", "Charlie", "David","Eve", "Fred", "Ginny", "Harriet", "Ileana", "Joseph", "Kincaid", "Larry"]

    PLANT_MAP ={
        'G': 'tráva',
        'C': 'ďatelina',
        'R': 'reďkovky',
        'V': 'fialky'
    }

    def __init__(self, diagram, students=None):
        if students is None:
            self.students = sorted(self.DEFAULT_STUDENTS)
        else:
            self.students = sorted(students)
        
        self.r = diagram.splitlines()

    def plants(self, student):
        if student not in self.students:
            raise NoSuchStudentException(f"Student '{student}' is not assigned a plot.")

        i = self.students.index(student)
        c1 = i*2
        c2 = i*2+1

        student_plants = [
            self.r[0][c1],
            self.r[0][c2],
            self.r[1][c1],
            self.r[1][c2]
        ]

        return [self.PLANT_MAP[code] for code in student_plants]