View Compilation Error

0_0_38612367_2558.cpp: In function 'int main()':
0_0_38612367_2558.cpp:20:11: error: 'LL' was not declared in this scope
    psum+=(LL)t*t;
           ^~
0_0_38612367_2558.cpp:30:2: error: expected '}' at end of input
  }
  ^
0_0_38612367_2558.cpp:8:1: note: to match this '{'
 {
 ^