main := proc() {
    p(69)
    a := 0
    b := 1
    n := 10
    # n := read_int(0)
    while n > 0 {
        c := a + b
        a = b
        b = c
        n = n - 1
    }
    print(a)
    exit(0)
}

p := proc() {
    print(1)
}