View Compilation Error

0_0_16626588_30322.cpp: In function 'int main()':
0_0_16626588_30322.cpp:7:82: error: expected ')' before '{' token
  while((((scanf("%f %f",&a,&b))==2)&&(((0<b)&&(b&&(b<=z))&&((0<b)&&(b <=z))))==1){      
                                                                                  ^