哪位大神知道如何输入使 a=3,b=7,x=8.5,y=71.82,c1='A',c2=’a‘

哪位大神知道如何输入使 a=3,b=7,x=8.5,y=71.82,c1='A',c2=’a‘
{int a,b;
float x,y;
char c1,c2;
scanf("a=%d b=%d",&a,&b);
scanf("x=%f y=%f",&x,&y);
scanf("c1=%c c2=%c",&c1,&c2);
printf("a=%d,b=%d,x=%f,y=%f,c1=%c,c2=%c",a,b,x,y,c1,c2);}