1[] 2 []3[] 4 []5 []6[] 7[] 8[] 9=2009 []填加减乘除

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1[]2[]3[]4[]5[]6[]7[]8[]9=2009[]填加减乘除1[]2[]3[]4[]5[]6[]7[]8[]9=2009[]填加减乘除1[]2[]3[]4[]5[]6[]7[]8[]9=

1[] 2 []3[] 4 []5 []6[] 7[] 8[] 9=2009 []填加减乘除
1[] 2 []3[] 4 []5 []6[] 7[] 8[] 9=2009 []填加减乘除

1[] 2 []3[] 4 []5 []6[] 7[] 8[] 9=2009 []填加减乘除
(1-2+3)x4x5x(6x7+8)+9=2009

[(6+7)*4-1+2-3]*5*8+9