class Node:
    def __init__ (self, key, value, dalsi = None):
        self.value, self.key,self.dalsi = value,key,dalsi

    def __repr__ (self):
        return f"{self.key} - {self.value} -> {self.dalsi}"

class LinkedSet:
    def __init__ (self):
        self.prvni = None

    def add(self,key,value):
        temp = self.prvni
        if self.prvni == None:
            self.prvni = Node(key, value)
            return
        if temp.value > value:
            self.prvni = Node(key, value, temp)
        else:
            while temp.dalsi.value < value:
                temp = temp.dalsi
            v = Node(key, value, temp.dalsi)
            temp.dalsi = v




hello = LinkedSet()
hello.prvni = Node("one", 1, Node("two", 2, Node('three',3,Node('tweny one',21,Node('thirty',30)))))
hello.prvni
hello.add('minusone',-1)
hello.prvni