#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define INF 2000000000 using namespace std; int dx[4]={1,0,-1,0},dy[4]={0,1,0,-1}; #define sym cout<<"-----------"< #define mk make_pair #define en endl #define RE return 0 //#define int ll int a[1005]; signed main(){ int N,sum[1001],a[1001],b,M,f=0; cin >> N >> M; fill(a,a+1001,0); for(int i=0; i> b; a[j+1] += b; } sum[0] = 0; for(int j=0; j