#include
int main(){int a,b,c=1,i;
while(scanf("%d",&a)!=EOF)
{c=1;
for(i=0;i {scanf("%d",&b);
if(b%2!=0)c*=b;}
printf("%dn",c);}
return 0;
}
#include
int main(){int a,b,c=1,i;
while(scanf("%d",&a)!=EOF)
{c=1;
for(i=0;i {scanf("%d",&b);
if(b%2!=0)c*=b;}
printf("%dn",c);}
return 0;
}
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