class MyList {
    protected int key;
    protected int value;
    protected MyList next;

    public MyList(int key, int value) {
        this.key = key;
        this.value = value;
    }
}

class MyHashMap {

    final int CAPACITY = 10000;

    protected MyList[] storage;

    public MyHashMap() {
        this.storage = new MyList[CAPACITY];
    }

    public void put(int key, int value) {
        MyList node = this.storage[this.hash(key)];
        if (node == null) {
            this.storage[this.hash(key)] = new MyList(key, value);
            return;
        }
        while (node != null) {
            if (node.key == key) {
                node.value = value;
                return;
            }
            if (node.next == null) {
                node.next = new MyList(key, value);
                return;
            }
            node = node.next;
        }
    }

    protected int hash(int key) {
        return key % CAPACITY;
    }

    public int get(int key) {
        MyList node = this.storage[this.hash(key)];
        while (node != null) {
            if (node.key == key) {
                return node.value;
            }
            node = node.next;
        }
        return -1;
    }

    public void remove(int key) {
        MyList node = this.storage[this.hash(key)];
        if (node == null) {
            return;
        }
        if (node.key == key) {
            this.storage[this.hash(key)] = node.next;
        }
        while (node != null) {
            if (node.next != null && node.next.key == key) {
                node.next = node.next.next;
                return;
            }
            node = node.next;
        }
    }
}