View Compilation Error

0_0_16243159_7458.cpp:11:10: error: variable or field 'upd' declared void
 void upd(ll &a,ll b){a=(a%F+b%F)%F;}
          ^
0_0_16243159_7458.cpp:11:10: error: 'll' was not declared in this scope
0_0_16243159_7458.cpp:11:14: error: 'a' was not declared in this scope
 void upd(ll &a,ll b){a=(a%F+b%F)%F;}
              ^
0_0_16243159_7458.cpp:11:16: error: 'll' was not declared in this scope
 void upd(ll &a,ll b){a=(a%F+b%F)%F;}
                ^