#!/usr/bin/env python3
# -*- coding: utf-8 -*-

#file = "./ex.txt"
file = "./input.txt"

if __name__ == "__main__":
    solution = 0
    ingredients = []
    fresh_ranges = []
    input_file = open(file, "r")
    for line in input_file:
        line = line.strip()
        if line == "":
            continue
        elif "-" in line:
            a,b = line.split('-')
            a = int(a)
            b = int(b)
            fresh_ranges.append([a,b])
        else:
            ingredients.append(int(line))

    for i in ingredients:
        is_in_range = False
        for r in fresh_ranges:
            if i in range(r[0],r[1]+1):
                is_in_range = True
        if is_in_range:
            solution += 1
    print(f"Solution: {solution}")