while(1):
    try:
        num = list(map(str, input().split()))
        a = num[0]
        b = num[1]
        aa = list(a.split(','))
        bb = list(b.split(','))
        out1 = ''
        out2 = ''
        for i in aa:
            out1 += i
        for i in bb:
            out2 += i
        print(int(out1) + int(out2))
    except:
        break