0_0_14710888_27913.cpp:24:3: error: stray '\' in program
int L=(n-1)>>1,k1=1ll*L*(L+1)*n\6\%mo;
^
0_0_14710888_27913.cpp:24:3: error: stray '\' in program
0_0_14710888_27913.cpp: In function 'void solve()':
0_0_14710888_27913.cpp:24:35: error: expected ',' or ';' before numeric constant
int L=(n-1)>>1,k1=1ll*L*(L+1)*n\6\%mo;
^
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