add easy #16
add easy #16

tlseabra/dailyprogrammer,tlgs/dailyprogrammer,tlgs/dailyprogrammer,tlgs/dailyprogrammer,tlgs/dailyprogrammer,tlseabra/dailyprogrammer,tlgs/dailyprogrammer,tlgs/dailyprogrammer,tlseabra/dailyprogrammer,tlseabra/dailyprogrammer,tlgs/dailyprogrammer,tlseabra/dailyprogrammer