View Compilation Error

0_0_34004175_21028.cpp: In function 'll S(ll, int)':
0_0_34004175_21028.cpp:83:16: error: 'p2' was not declared in this scope
   for(int e=1; p2<=x; e++){
                ^
0_0_34004175_21028.cpp:86:34: error: 'p1' was not declared in this scope
    res = ( 1ll * res + 1ll * S(x/p1,i+1)*f1%mod + f2 )%mod; 
                                  ^