View Compilation Error

0_0_20716223_25860.cpp:5:1: error: expected initializer before 'LL'
 LL M[22];
 ^
0_0_20716223_25860.cpp: In function 'int main()':
0_0_20716223_25860.cpp:8:2: error: 'M' was not declared in this scope
  M[1] = 0;M[2] = 1;
  ^