ffmpeg with multiple inputs

ffmpeg ^
-hide_banner ^
-loglevel verbose ^
-re -i "./video/youtube/video_0.mp4" ^
-re -i "./video/youtube/video_0.mp4" ^
-re -i "./video/youtube/video_0.mp4" ^
-re -i http://us-b.icecast.edge.streaminginter.net:8000/ifl/opus_hq.opus ^
-i .\video\logo_small.png ^
-filter_complex ^
[0:v]split=3[v0i0][v0i1][v0i2];^
[0:v]scale=1280x720:force_original_aspect_ratio=1[vs0];^
[1:v]scale=1280x720:force_original_aspect_ratio=1[vs1];^
[2:v]scale=1280x720:force_original_aspect_ratio=1[vs2];^
[3:a]atrim=start=224.32:end=336.48,asetpts=PTS-STARTPTS[aa0];^
[vs0][0:a][vs1][0:a][vs2][aa0]concat=n=3:v=1:a=1[concatvideo][concataudio];^
[concatvideo][4:v]overlay=W-w-10:10[outvideo] ^
-map [outvideo] -map [concataudio] ^
-f mpegts udp://127.0.0.1:23000