#0  0x0000000000406bb3 in ?? ()
No symbol table info available.
#1  0x0000000000404208 in ?? ()
No symbol table info available.
#2  0x000000000040338a in ?? ()
No symbol table info available.
#3  0x00007f6ad0158de5 in __libc_start_main (main=0x402540, argc=1, ubp_av=0x7fffbee50d38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbee50d28) at libc-start.c:260
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3436705660870466018, 4210432, 140736396070192, 0, 0, -3436567173495907870, -3358557514962036254}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x406ed0, 0x7fffbee50d38}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4222672}}}
        not_first_call = <optimized out>
#4  0x0000000000403f29 in ?? ()
No symbol table info available.