import sys
import struct
import socket

if __name__ == "__main__":
    target = sys.argv[1]
    width = int(sys.argv[2])
    height = int(sys.argv[3])

    size = width*height*3

    prefix = struct.pack(
        '!BBHBB', 0x9c, 0xda, size, 0, 1)

    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

    while True:
        buf = prefix + sys.stdin.read(size) + '\x36'
        if len(buf) == 7:
            exit(1)
        sock.sendto(buf, (target, 65506))