Can you help me get this SQL Query

Question

BondNumber	BondValue
111	1000
111	2000
222	1000
222	2000
222	3000
333	1000
333	2000
333	3000
333	4000
Can u help me give a Query to get the below output
BondNumber	BondValue
111	2000
222	3000
333	4000