def connectedCell(matrix):
    row,col = len(matrix),len(matrix[0])
    visited = [[0]*col for _ in range(row)]
    ans = 0
    def dfsCount(data,visited,i,j,row,col):
        if i<0 or i>=row or j<0 or j>=col or data[i][j]!=1 or visited[i][j]!=0:
            return 0
        visited[i][j]=1
        return dfsCount(data,visited,i-1,j,row,col)+dfsCount(data,visited,i+1,j,row,col)+dfsCount(data,visited,i,j-1,row,col)+dfsCount(data,visited,i,j+1,row,col)+dfsCount(data,visited,i-1,j-1,row,col)+dfsCount(data,visited,i+1,j+1,row,col)+dfsCount(data,visited,i-1,j+1,row,col)+dfsCount(data,visited,i+1,j-1,row,col)+1
    for i in range(row):
        for j in range(col):
            if visited[i][j]==0 and matrix[i][j]==1:
                count =  dfsCount(matrix,visited,i,j,row,col)
                ans = max(count,ans)
    return ans