32+11+18+39 =(32+18)+(11+39)=100
45+21+15+49=(45+15)+(21+49)=130
64+33+16+47=(64+16)+(33+47)=160
56+25+45+24=(56+24)+(25+45)=150
72+67+23+18=(72+18)+(67+23)=180
97+42+58+103=(97+103)+(42+58)=300
32+11+18+39 =(32+18)+(11+39)=100
45+21+15+49=(45+15)+(21+49)=130
64+33+16+47=(64+16)+(33+47)=160
56+25+45+24=(56+24)+(25+45)=150
72+67+23+18=(72+18)+(67+23)=180
97+42+58+103=(97+103)+(42+58)=300