Language: C

#include<stdio.h>
int main(void){
  char S[11];
  char T[12];
  scanf("%S",&S);
  scanf("%T",&T);
  if(Sa==T)puts("Yes\n");
  else if(Sb==T)puts("Yes\n");
  else if(Sc==T)puts("Yes\n");
  else if(Sd==T)puts("Yes\n");
  else if(Se==T)puts("Yes\n");
  else if(Sf==T)puts("Yes\n");
  else if(Sg==T)puts("Yes\n");
  else if(Sh==T)puts("Yes\n");
  else if(Si==T)puts("Yes\n");
  else if(Sj==T)puts("Yes\n");
  else if(Sk==T)puts("Yes\n");
  else if(Sl==T)puts("Yes\n");
  else if(Sm==T)puts("Yes\n");
  else if(Sn==T)puts("Yes\n");
  else if(So==T)puts("Yes\n");
  else if(Sp==T)puts("Yes\n");
  else if(Sq==T)puts("Yes\n");
  else if(Sr==T)puts("Yes\n");
  else if(Ss==T)puts("Yes\n");
  else if(St==T)puts("Yes\n");
  else if(Su==T)puts("Yes\n");
  else if(Sv==T)puts("Yes\n");
  else if(Sw==T)puts("Yes\n");
  else if(Sx==T)puts("Yes\n");
  else if(Sy==T)puts("Yes\n");
  else if(Sz==T)puts("Yes\n");
  else puts("No\n");
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:6: error: 'Sa' undeclared (first use in this function); did you mean 'S'?
    7 |   if(Sa==T)puts("Yes\n");
      |      ^~
      |      S
main.c:7:6: note: each undeclared identifier is reported only once for each function it appears in
main.c:8:11: error: 'Sb' undeclared (first use in this function); did you mean 'S'?
    8 |   else if(Sb==T)puts("Yes\n");
      |           ^~
      |           S
main.c:9:11: error: 'Sc' undeclared (first use in this function); did you mean 'S'?
    9 |   else if(Sc==T)puts("Yes\n");
      |           ^~
      |           S
main.c:10:11: error: 'Sd' undeclared (first use in this function); did you mean 'S'?
   10 |   else if(Sd==T)puts("Yes\n");
      |           ^~
      |           S
main.c:11:11: error: 'Se' undeclared (first use in this function); did you mean 'S'?
   11 |   else if(Se==T)puts("Yes\n");
      |           ^~
      |           S
main.c:12:11: error: 'Sf' undeclared (first use in this function); did you mean 'S'?
   12 |   else if(Sf==T)puts("Yes\n");
      |           ^~
      |           S
main.c:13:11: error: 'Sg' undeclared (first use in this function); did you mean 'S'?
   13 |   else if(Sg==T)puts("Yes\n");
      |           ^~
      |           S
main.c:14:11: error: 'Sh' undeclared (first use in this function); did you mean 'S'?
   14 |   else if(Sh==T)puts("Yes\n");
      |           ^~
      |           S
main.c:15:11: error: 'Si' undeclared (first use in this function); did you mean 'S'?
   15 |   else if(Si==T)puts("Yes\n");
      |           ^~
      |           S
main.c:16:11: error: 'Sj' undeclared (first use in this function); did you mean 'S'?
   16 |   else if(Sj==T)puts("Yes\n");
      |           ^~
      |           S
main.c:17:11: error: 'Sk' undeclared (first use in this function); did you mean 'S'?
   17 |   else if(Sk==T)puts("Yes\n");
      |           ^~
      |           S
main.c:18:11: error: 'Sl' undeclared (first use in this function); did you mean 'S'?
   18 |   else if(Sl==T)puts("Yes\n");
      |           ^~
      |           S
main.c:19:11: error: 'Sm' undeclared (first use in this function); did you mean 'S'?
   19 |   else if(Sm==T)puts("Yes\n");
      |           ^~
      |           S
main.c:20:11: error: 'Sn' undeclared (first use in this function); did you mean 'S'?
   20 |   else if(Sn==T)puts("Yes\n");
      |           ^~
      |           S
main.c:21:11: error: 'So' undeclared (first use in this function); did you mean 'S'?
   21 |   else if(So==T)puts("Yes\n");
      |           ^~
      |           S
main.c:22:11: error: 'Sp' undeclared (first use in this function); did you mean 'S'?
   22 |   else if(Sp==T)puts("Yes\n");
      |           ^~
      |           S
main.c:23:11: error: 'Sq' undeclared (first use in this function); did you mean 'S'?
   23 |   else if(Sq==T)puts("Yes\n");
      |           ^~
      |           S
main.c:24:11: error: 'Sr' undeclared (first use in this function); did you mean 'S'?
   24 |   else if(Sr==T)puts("Yes\n");
      |           ^~
      |           S
main.c:25:11: error: 'Ss' undeclared (first use in this function); did you mean 'S'?
   25 |   else if(Ss==T)puts("Yes\n");
      |           ^~
      |           S
main.c:26:11: error: 'St' undeclared (first use in this function); did you mean 'S'?
   26 |   else if(St==T)puts("Yes\n");
      |           ^~
      |           S
main.c:27:11: error: 'Su' undeclared (first use in this function); did you mean 'S'?
   27 |   else if(Su==T)puts("Yes\n");
      |           ^~
      |           S
main.c:28:11: error: 'Sv' undeclared (first use in this function); did you mean 'S'?
   28 |   else if(Sv==T)puts("Yes\n");
      |           ^~
      |           S
main.c:29:11: error: 'Sw' undeclared (first use in this function); did you mean 'S'?
   29 |   else if(Sw==T)puts("Yes\n");
      |           ^~
      |           S
main.c:30:11: error: 'Sx' undeclared (first use in this function); did you mean 'S'?
   30 |   else if(Sx==T)puts("Yes\n");
      |           ^~
      |           S
main.c:31:11: error: 'Sy' undeclared (first use in this function); did you mean 'S'?
   31 |   else if(Sy==T)puts("Yes\n");
      |           ^~
      |           S
main.c:32:11: error: 'Sz' undeclared (first use in this function); did you mean 'S'?
   32 |   else if(Sz==T)puts("Yes\n");
      |           ^~
      |           S