0_0_38530851_25688.cpp: In function 'long long int read()':
0_0_38530851_25688.cpp:4:13: error: expected primary-expression before 'long'
#define int long long
^
0_0_38530851_25688.cpp:17:16: note: in expansion of macro 'int'
x = x * 10 + int(ch - '0');
^
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