HEX = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"]
ARTWORK = ["<svg><rect x=\"23\" y=\"23\" ", "height=\"123\" width=\"123\" ", "style=\"fill:none;stroke:#", ";stroke-width:32\" /></svg>"]
ARTWORK.LENGTH = 10
ARTWORK.INSERT.END = 8

// Make sure we have enough gas to run the contact
if tx.value < tx.basefee * 500:
    // If not, stop
    stop

// If there are enough arguments
// and the command to create the work is being given
if msg.datasize == 1 and msg.data[0] == "create":
    artwork = array(ARTWORK.LENGTH)
    artwork[0] = ARTWORK[0]
    artwork[1] = ARTWORK[1]
    artwork[2] = ARTWORK[2]
    artwork[9] = ARTWORK[3]
    // Copy the most significant hex bytes of the key as an html colour
    index = 0
    hash.bytes = msg.sender
    while index < 3:
        current.byte = hash.bytes % 256
        hash.bytes = hash.bytes / 256
        hi = HEX[current.byte / 16]
        lo = HEX[current.byte % 16]
        artwork[ARTWORK.INSERT.END - (index * 2)] = lo
        artwork[ARTWORK.INSERT.END - (index * 2) + 1] = hi
        index = index + 1
    return(artwork, ARTWORK.LENGTH)
// Otherwise
else:
    // Logical false for failure
    return(0)