private long F1(int ax,int bx,int c) { return ax*ax+ bx +c; } private long F2(int x,int y) { int s= x+y; return s*s*s; } private int F3(int a,int b) { return (a+b)/(a-b); } private long F1(int ax,int bx,int c) { return ax*ax+ bx +c; } private long F2(int x,int y) { int s= x+y; return s*s*s; } private int F3(int a,int b) { return (a+b)/(a-b); }