package main

import (
    "fmt"
)

func main() {
    var n, a, b int
    fmt.Scanf("%d %d %d", &n,&a,&b)
	
    fmt.Printf("%d\n", n-a+b)
}

package main

import (
	"fmt"
	"math"
)

func main() {
    var n int
    fmt.Scanf("%d", &n)
	
	var t int
	manhattan :=0
	euqulid :=0
	chebishev :=0

	for i := 0; i < n; i++ {
		fmt.Scanf("%d", &t)
		
		if t > 0 {
			manhattan += t
		}else{
			manhattan -= t
		}

		euqulid += t*t

		if t > 0 {
			if t > chebishev{
				chebishev = t
			}
		}else{
			if -t > chebishev{
				chebishev = -t				
			}  
		}
	}

	fmt.Printf("%d\n", manhattan)
	
    fmt.Printf("%.10f\n", math.Sqrt(float64(euqulid)))
	
	fmt.Printf("%d\n", chebishev)
	
}

package main

import (
	"fmt"
)

func main() {
    var n int
    fmt.Scanf("%d", &n)

	max := make([]int, 1)

	for i:=1; i*i<n+1; i++{
		if n % i == 0{
			if n/i != i{
				max = append(max, n/i)
			}
			fmt.Printf("%d\n", i)
		}
	}


	for i:=len(max)-1; i>0; i--{
		if max[i] != 0{
			fmt.Printf("%d\n", max[i])
		}
	}
}

package main

import (
    "fmt"
)

func main() {
    var x, y, a, b uint64
    fmt.Scanf("%d %d %d %d", &x, &y, &a, &b)

	var cnt uint64 = 0

	for x < y/a & b/(a-1) {
		cnt++
		x *= a
	}

	cnt += (y-1-x)/b

    fmt.Printf("%d\n", cnt)
}

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