=IY;           
           XRVRRi          
          =Ri :RR          
          VR  ;RR          
          RY  tRY          
          RX ;RR;          
          tR=RRR           
          ;RRRR;           
          ;RRRi            
         ;RRRV             
        ;RRRRR:            
       :RRRV.RX            
       VRRR: ;R=           
      =RRR+   YRitti;.     
      VRRR  :YRRRRRRRRt.   
     .RRRY ;RRYYR;;iRRRR.  
     :RRRi RR; .Rt  .XRRY  
     :RRR= RV   +R.  .RRR  
     :RRRt tR    Rt   IRR. 
      RRRR  ;;   +R.  XRY  
      ;RRRt      .R+ +RR:  
       ;RRRX;     YRIRX:   
        .+RRRRIiitRRY;     
           :;+ii+;tR:      
                  ;R:      
                  iR       
         ;VRRi    Vi       
         RRRRR.  tR.       
         YRRR+ ;YV:        
         .tRRRRR+          
           .;;: