#include#include#include#include#include#include#include#include#include#include#include#include#include#include#define?mp?make_pairusing?namespace?std;const?int?INF=1e9;map?par;string?op=“^*/%+-“;inline?string?T（string?s）{for（int?i=0;ireturn?s;}inline?string?gP（string?s）{return?!par.count（s）?s:par[s]=gP（par[s]）;?}inline?int?dvi（int?aint?b）{if（a==0||b==0）?return?0;bool?x=a<0^b<0;int?rt=abs（a）/abs（b）;return?x?-rt:rt;}inline?int?mod（int?aint?b）{if（a==0||b==0）?return?0;bool?x=a<0^b<0;int?rt=abs（a）%abs（b）;return?x?-rt:rt;}inline?int?mul（int?aint?b）{if（a==0||b=
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