lib C
    fun getchar_unlocked : Int32
    fun isspace(c: Int32): Bool
end
fun read_int: Int32
    ans = 0
    f = 1
    c = C.getchar_unlocked()
    while C.isspace(c)
        c = C.getchar_unlocked()
    end
    if c == 45
        f = -1
        c = C.getchar_unlocked()
    end
    while (48 .. 57).includes?(c)
        ans = (ans << 1) + (ans << 3) + (c ^ 48)
        c = C.getchar_unlocked()
    end
    return ans * f
end
a = read_int
b = read_int
puts (b + a - 1) // a