FILE = "input.txt"

def main():
    freshRanges = []
    indgredients = []
    complete = False
    for line in open(FILE):
        if line == "\n":
            complete = True
            continue
        if not complete:
            freshRanges.append(line.strip().split("-"))
        else:
            indgredients.append(line.strip())
    freshRanges = [
        range(int(start), int(stop)+1) for (start, stop) in freshRanges
    ]
    indgredients = [ int(x) for x in indgredients ]
    return len([
        indgredient
        for indgredient in indgredients
        if any(indgredient in r for r in freshRanges)
    ])


if __name__ == "__main__":
    print(main())