{"a":8.9,"b":8.5,"diff":0.4}
{"a":9.4,"b":9.3,"diff":0.1}
{"a":11.2,"b":10.8,"diff":0.4}
{"a":11.4,"b":11.6,"diff":-0.2}
{"a":13,"b":12.9,"diff":0.1}
{"a":6.4,"b":6.5,"diff":-0.1}
{"a":13.4,"b":13.1,"diff":0.3}
{"a":5.6,"b":5.1,"diff":0.5}
{"a":4.8,"b":4.3,"diff":0.5}
{"a":15.8,"b":15.6,"diff":0.2}