package main

import (
	"fmt"
	"log"
)

var N, M int

func main() {
	log.SetFlags(log.Lshortfile)

	fmt.Scan(&N, &M)
	var A [2][2]int
	A[0][0] = 1
	A[0][1] = 1
	A[1][0] = 1
	A[1][1] = 0
	var B [2][2]int
	for i := range B {
		B[i][i] = 1
	}
	for N > 0 {
		if N&1 == 1 {
			B = mul(B, A)
		}
		A = mul(A, A)
		N >>= 1
	}
	// log.Println(B)
	fmt.Println(B[1][1])
}

func mul(a, b [2][2]int) [2][2]int {
	var c [2][2]int
	for i := 0; i < len(a); i++ {
		for k := 0; k < len(b); k++ {
			for j := 0; j < len(b[0]); j++ {
				c[i][j] = (c[i][j] + a[i][k]*b[k][j]) % M
			}
		}
	}
	return c
}