View Compilation Error

0_0_26530261_22659.cpp:27:4: error: missing terminating " character
    printf("%d,a[x]);
    ^
0_0_26530261_22659.cpp: In function 'int main()':
0_0_26530261_22659.cpp:6:14: error: expected primary-expression before '%' token
  while(scanf(%d%d,&n,&r)!=eof)
              ^
0_0_26530261_22659.cpp:6:15: error: 'd' was not declared in this scope
  while(scanf(%d%d,&n,&r)!=eof)
               ^
0_0_26530261_22659.cpp:6:27: error: 'eof' was not declared in this scope
  while(scanf(%d%d,&n,&r)!=eof)
                           ^
0_0_26530261_22659.cpp:28:4: error: expected primary-expression before 'else'
    else printf(%c,55+a[x]);
    ^
0_0_26530261_22659.cpp: At global scope:
0_0_26530261_22659.cpp:32:1: error: expected unqualified-id before 'return'
 return 0;
 ^
0_0_26530261_22659.cpp:33:1: error: expected declaration before '}' token
 }
 ^