#include<cstdio>#define MAXN 1010using namespace std;struct ops{ int l,r,pr; char op;};ops o[MAXN];char s[MAXN];int k,p;int expr();int createOps(int l,int r,char op,int pr){ k++; o[k].l=l; o[k].r=r; o[k].pr=pr; o[k].op=op; return k;}int factor(){ int ret; if(s[p]>='a'&&s[p]<='z') ret=createOps(0,0,s[p++],3); else { p++; ret=expr(); p++; } return ret;}int term(){ int l,r,ret; char op; l=factor(); while(s[p]=='*'||s[p]=='/') { op=s[p++]; r=factor(); l=createOps(l,r,op,2); } return l;}int expr(){ int l,r; char op; l=term(); while(s[p]=='+'||s[p]=='-') { op=s[p++]; r=term(); l=createOps(l,r,op,1); } return l;}void Print(int n,bool inverse){ int l,r; if(o[n].op>='a'&&o[n].op<='z') { putchar(o[n].op); return; } l=o[n].l; r=o[n].r; if(o[l].pr>o[n].pr) Print(l,false); else if(o[l].pr<o[n].pr) { putchar('('); Print(l,false); putchar(')'); } else Print(l,inverse); if(!inverse) putchar(o[n].op); else if(o[n].op=='+') putchar('-'); else if(o[n].op=='-') putchar('+'); else if(o[n].op=='*') putchar('/'); else putchar('*'); if(o[r].pr>o[n].pr) Print(r,false); else if(o[r].pr<o[n].pr) { putchar('('); Print(r,false); putchar(')'); } else { if(o[n].op=='-'||o[n].op=='/') inverse=!inverse; Print(r,inverse); }}int main(){ gets(s); k=p=0; int n=expr(); Print(n,false); return 0; }
