class h{public static void main(String[]a){char[]i=g();char[]r;while((r=g()).length>0&&r[0]>20)for(int j=0;j<r.length;j++)i[j]-=r[j]>32?r[j]-44:0;for(char x:i)System.out.print(x);}static char[]g(){int n;String s="";try{while((n=System.in.read())>10)s+=(char)n;}catch(Exception e){}return s.toCharArray();}}