add easy #30
add easy #30

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