grid = [
    [0,0,0,0,1],
    [0,0,1,0,1],
    [0,0,1,1,1],
    [1,0,0,0,1],
    [0,0,0,0,0]
]

blob_count = 1

for idx,i in enumerate(grid):
    for jdx,j in enumerate(i):
        print(grid[idx][jdx],end=' ')
    print()

def is_valid(x,y):
    return 0 <= x < rows and 0 <= y < cols and not visited[x][y] and grid[x][y] == '1'

rows,cols = len(grid), len(grid[0])
visited = [[False for _ in range(cols)] for _ in range(rows)]
directions = [(0,1),(0,-1),(1,0),(-1,0)]

def dfs(x, y,blob_count):
    print(blob_count)
    visited[x][y] = True
    for dx, dy in directions:
        nx, ny = x + dx, y + dy
        
        if is_valid(nx, ny):
            
            dfs(nx, ny,blob_count)
        else:
            blob_count += 1
            return blob_count


for i in range(rows):
    for j in range(cols):
        if grid[i][j] == 1 and not visited[i][j]:
            grid[i][j] = blob_count
            blob_count = dfs(i, j,blob_count)


print(blob_count)

for idx,i in enumerate(grid):
    for jdx,j in enumerate(i):
        print(grid[idx][jdx],end=' ')
    print()