def sudaPosloupnost(n):
    pass;
                

def mocninyDvojky(n):
    pass;


def delitele(n):
    pass;


def fibonacci(n):
    pass;
        
# 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 1 2 3 4 5 6 ...

def postupneZvysovani(n):
    pass;


def ctverec(n):
   pass;


def prazdnyCtverec(n):
   pass;


def pyramida(n):
    pass;