소스 코드 제출

//2601번

/*

#include<stdio.h>

long long int f(long long int n)

{

long long int i,sum=0;

////#include <stdio.h>

////int memo[100][100]={};

////

////

////int pascal(int r, int c){

////

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

int N, M;

int dy[8] = {0, 0, -1, 1};

int dx[8] = {-1, 1, 0, 0};

#

# stack=[]

# arr=list(input().split())

# sum=0

# top=-1

# while True: