include<stdio.h>

main()
{int a,b;
scanf("%d %d",&a,&b);
printf("%d+%d=%d\n",a,b,a+b);
printf("%7d\n+%6d\n-------\n%7d",a,b,a+b);}//格式控制符控制数据宽度，数值型数据默认右对齐，左补空格