0_0_37708842_2220.cpp:5:3: error: missing terminating ' character
const int mod = 1'000'000'007;
^
0_0_37708842_2220.cpp: In function 'int main()':
0_0_37708842_2220.cpp:5:20: error: expected ',' or ';' before '\x303030'
const int mod = 1'000'000'007;
^
0_0_37708842_2220.cpp:7:3: error: 'ans' was not declared in this scope
ans %= mod;
^
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