from stack import MainStack


class MinStack:
    # Initialize min and main stack here
    def __init__(self):

        # Write your code here
        pass

    # Remove and returns value from the stack
    def pop(self):

        # Write your code here
        pass

    # Pushes values into the stack
    def push(self, value):

        # Write your code here
        pass

    # Returns minimum value from stack
    def min_number(self):

        # Write your code here
        pass