View Compilation Error

0_0_29816221_23013.cpp: In function 'int main()':
0_0_29816221_23013.cpp:131:47: error: expected '}' at end of input
             rep(i,10,len-1) _a=_a*10+s1[i]-'0';
                                               ^
0_0_29816221_23013.cpp:131:47: error: expected '}' at end of input
0_0_29816221_23013.cpp:131:47: error: expected '}' at end of input