自己打开看看吧.1:9 - 7 + 11 + 11
2:(9 - 7) + 11 + 11
3:(9 - 7 + 11) + 11
4:((9 - 7) + 11) + 11
5:9 - 7 +(11 + 11)
6:(9 - 7) + (11 + 11)
7:(9 - (7 - 11)) + 11
8:9 - (7 - 11) + 11
9:9 - (7 - (11 + 11))
10:9 - (7 - 11 - 11)
11:9 - ((7 - 11) - 11)
12:9 + 11 - 7 + 11
13:(9 + 11) - 7 + 11
14:(9 + 11 - 7) + 11
15:((9 + 11) - 7) + 11
16:(9 + (11 - 7)) + 11
17:9 + (11 - 7) + 11
18:9 + (11 - 7 + 11)
19:9 + ((11 - 7) + 11)
20:9 + (11 - (7 - 11))
21:9 + 11 -(7 - 11)
22:(9 + 11) - (7 - 11)
23:9 + 11 + 11 - 7
24:(9 + 11) + 11 - 7
25:(9 + 11 + 11) - 7
26:((9 + 11) + 11) - 7
27:(9 + (11 + 11)) - 7
28:9 + (11 + 11) - 7
29:9 + (11 + 11 - 7)
30:9 + ((11 + 11) - 7)
31:9 + (11 + (11 - 7))
32:9 + 11 +(11 - 7)
33:(9 + 11) + (11 - 7)
34:11 + 9 - 7 + 11
35:(11 + 9) - 7 + 11
36:(11 + 9 - 7) + 11
37:((11 + 9) - 7) + 11
38:(11 + (9 - 7)) + 11
39:11 + (9 - 7) + 11
40:11 + (9 - 7 + 11)
41:11 + ((9 - 7) + 11)
42:11 + (9 - (7 - 11))
43:11 + 9 -(7 - 11)
44:(11 + 9) - (7 - 11)
45:11 + 9 + 11 - 7
46:(11 + 9) + 11 - 7
47:(11 + 9 + 11) - 7
48:((11 + 9) + 11) - 7
49:(11 + (9 + 11)) - 7
50:11 + (9 + 11) - 7
51:11 + (9 + 11 - 7)
52:11 + ((9 + 11) - 7)
53:11 + (9 + (11 - 7))
54:11 + 9 +(11 - 7)
55:(11 + 9) + (11 - 7)
56:11 - 7 + 9 + 11
57:(11 - 7) + 9 + 11
58:(11 - 7 + 9) + 11
59:((11 - 7) + 9) + 11
60:11 - 7 +(9 + 11)
61:(11 - 7) + (9 + 11)
62:(11 - (7 - 9)) + 11
63:11 - (7 - 9) + 11
64:11 - (7 - (9 + 11))
65:11 - (7 - 9 - 11)
66:11 - ((7 - 9) - 11)
67:11 - 7 + 11 + 9
68:(11 - 7) + 11 + 9
69:(11 - 7 + 11) + 9
70:((11 - 7) + 11) + 9
71:11 - 7 +(11 + 9)
72:(11 - 7) + (11 + 9)
73:(11 - (7 - 11)) + 9
74:11 - (7 - 11) + 9
75:11 - (7 - (11 + 9))
76:11 - (7 - 11 - 9)
77:11 - ((7 - 11) - 9)
78:11 + 11 + 9 - 7
79:(11 + 11) + 9 - 7
80:(11 + 11 + 9) - 7
81:((11 + 11) + 9) - 7
82:(11 + (11 + 9)) - 7
83:11 + (11 + 9) - 7
84:11 + (11 + 9 - 7)
85:11 + ((11 + 9) - 7)
86:11 + (11 + (9 - 7))
87:11 + 11 +(9 - 7)
88:(11 + 11) + (9 - 7)
89:11 + 11 - 7 + 9
90:(11 + 11) - 7 + 9
91:(11 + 11 - 7) + 9
92:((11 + 11) - 7) + 9
93:(11 + (11 - 7)) + 9
94:11 + (11 - 7) + 9
95:11 + (11 - 7 + 9)
96:11 + ((11 - 7) + 9)
97:11 + (11 - (7 - 9))
98:11 + 11 -(7 - 9)
99:(11 + 11) - (7 - 9)
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