init:
    // Price: 1 szabo
    contract.storage[1001] = 100000000000
    // Artist
    contract.storage[1002] = msg.caller

code:
    if tx.ether != contract.storage[1001]:
        return("Wrong price")
    if contract.storage[msg.sender]:
        return("Already paid")
    contract.storage[msg.sender] = msg.sender + 1
    send(contract.storage[1002], tx.ether, 0)
    return("OK")