后面括号里面的3码是 合还是差 求大神解惑 谢谢

万能四码如下：
0126=39,45,78-(2,9,5)
0134=27,59,68-(4,9,8)
0159=28,34,67-(0,7,3)
0178=26,35,49-(8,3,6)
0239=16,48,57-(2,7,4)
0247=13,58,69-(4,3,5)
0258=36,19,47-(9,0,1)
0357=18,29,46-(9,1,0)
0368=14,25,79-(5,7,6)
0456=12,37,89-(3,0,7)
0489=17,23,56-(8,5,1)
0679=15,38,24-(6,1,2)
1237=04,56,89-(4,1,7)
1245=06,38,79-(6,1,2)
1289=05,46,37-(0,5,1)
1358=07,24,69-(7,6,5)
1369=02,47,58-(2,1,3)
1468=03,57,29-(3,2,1)
1479=08,25,36-(8,7,9)
1567=09,23,48-(9,5,2)
2348=09,15,67-(9,6,3)
2356=08,17,49-(8,3,6)
2469=07,35,18-(7,8,9)
2579=03,14,68-(3,4,5)
2678=01,34,59-(1,7,4)
3459=01,26,78-(1,8,5)
3467=05,19,28-(0,5,1)
3789=06,12,45-(6,3,9)
4578=02,16,39-(2,7,4)
5689=04,13,27-(4,9,8)