integer::N,M,i,j,k,switch=0,X
integer,allocatable,dimension(:,:)::a,b

read *,N,M
allocate(a(M,N),b(M,N))

do i=1,M
 read *,a(i,:)
end do
do j=1,N
 b(1,j)=a(1,j)
end do

do i=1,M
 X=sum(b(i,:))
 do j=1,N
  b(i+1,j)=b(i,j)+a(i+1,j)
  if(X<777) cycle
  if(b(i,j)==0) cycle
  do k=j,N
   if(b(i,j)==0) cycle
   if(sum(b(i,j:k))==777) then
    switch=1
   end if
   if(sum(b(i,j:k))>=777) exit
  end do
  if(sum(b(i,j:k))==777) exit
 end do
 if(sum(b(i,j:k))==777) exit
end do

if(switch==1) then 
 print *,'YES'
else
 print *,'NO'
end if

end