a;main(b,c,d){for(;~scanf("%s%c",&d,&b);c=d)a=!a|a&64?a>>8^d:b&2?!printf("Why, %s, good sir or madam, this list is %sin fact a palindrome\n",a?"no":"yes","not "-!a,a=(a^c^d)<<8):a;}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).