乘法表

#include <stdio.h>
int main() {
int a,b,n;
scanf("%d",&n);

for(a=1;a<=n;a++){
    for(b=a;b<=n;b++){if(b!=n){printf("%d*%d=%d\t",a,b,a*b);}
                     else{printf("%d*%d=%d\n",a,b,a*b);break;}
                     }
}

    return 0;
}