#include <stdio.h>            //^
const int W = 34;             //`
char buf[99][99];             //R
char vxor[99];               //aW
int main(){                  //aC
  int x,y,c;                 //aK
  int tx = 0, ty;             //H
  int hxor = 0;               //H
  x = y = 0;                 //aK
  while ((c=getchar()) !=-1){//aT
    if (c == '\n'){           //$
      if (hxor != 0) ty = y;  //]
      hxor = 0;              //aZ
      ++y; x = 0;            //aM
      continue; }             //G
    buf[y][x] = c;           //xM
    vxor[x++] ^= c;           //v
    hxor ^= c; }              //k
  while (vxor[tx] == 0) ++tx; //@
  c = vxor[tx]^buf[ty][tx];   //r
  printf("%d\n\"%c\"\n\"%c\"",//R
    tx+ty*W, c, buf[ty][tx]); //v
  return 0; }                 /*Y
x x                           | \
{gsf-----------_---_-___--------{
*///p}-@tCyCK>6%FssnUxus/M+lt!~>=