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0_0_10207045_2646.cpp: In function `int main()':
0_0_10207045_2646.cpp:40: error: redefinition of `int main()'
0_0_10207045_2646.cpp:4: error: `int main()' previously defined here
0_0_10207045_2646.cpp: In function `int just(long int, long int)':
0_0_10207045_2646.cpp:54: error: redefinition of `int just(long int, long int)'
0_0_10207045_2646.cpp:18: error: `int just(long int, long int)' previously defined here