{"a"="1";"b"="2";"c"="1";"d"="5"};
{"a"="2";"b"="2";"c"="2";"d"="6"};
{"a"="3";"b"="3";"c"="1";"d"="7"};
{"a"="4";"b"="3";"c"="2";"d"="8"};
