View Compilation Error

0_0_26824428_7746.cpp:8:2: error: missing terminating " character
  else if (70<=n) printf("%d\n,C);
  ^
0_0_26824428_7746.cpp: In function 'int main()':
0_0_26824428_7746.cpp:6:32: error: 'A' was not declared in this scope
  else if (90<=n) printf("%d\n",A);
                                ^
0_0_26824428_7746.cpp:7:32: error: 'B' was not declared in this scope
  else if (80<=n) printf("%d\n",B);
                                ^
0_0_26824428_7746.cpp:9:5: error: expected primary-expression before 'else'
     else if (60<=n) printf("%d\n",D);
     ^
0_0_26824428_7746.cpp:10:21: error: 'E' was not declared in this scope
  else printf("%d\n",E);
                     ^