#include/*math=math*/<stdio.h>

// AOC 2020 DAY 18  SYMBOLS //
char*p,*q,b[324];long f,z,d(),
e();;    long x(){long(*g)()=f
?e:d,    a=g(),b,i;for(;*p==+1
||(!f    &&*p==2);b=g(),i?a+=+
+            b:(a*=b))i=*p++==
+            2;return +a;}long
d(){{    long a=7<=*p&&*p<=16?
*p-7:    (++p,+x());++p;return
+a;}}    long e    (){    long
a=d();for(;*p==2    ;    a+=d(
))++p;return ((a)       );}int
main(int c,char**g     ){for(f
=--c>0;q=gets(b);       *p=0,p
=b,z+=x())for(p=    b    ;*q;q
++)*q^32?*p++=(    *q)    -4*9
-5:0;printf("%ld\n",z);/*18*/}