5 ms·
try:print(lambda x:eval(x)if all(i in'0123456789.*/+-'for i in x)else'syntax error')(raw_input()) except:print'error'
by adr_ 14y ago
try:print(lambda x:eval(x)if all(i in'0123456789.*/+-'for i in x)else'syntax error')(raw_input())
except:print'error'