def Bin_Watch(turnedOn):
        output = []
        for h in range(12):
            for m in range(60):
                if bin(h).count('1') + bin(m).count('1') == turnedOn: 
                    output.append(f"{h}:{m:02d}")  
        return output
print (Bin_Watch (1))
#print (Bin_Watch (9))