1*1=  1;  1*2=  2;  1*3=  3;  1*4=  4;  1*5=  5;  1*6=  6;  1*7=  7;  
 2*1=  2;  2*2=  4;  2*3=  6;  2*4=  8;  2*5= 10;  2*6= 12;  2*7= 14;  
 3*1=  3;  3*2=  6;  3*3=  9;  3*4= 12;  3*5= 15;  3*6= 18;  3*7= 21;  
 4*1=  4;  4*2=  8;  4*3= 12;  4*4= 16;  4*5= 20;  4*6= 24;  4*7= 28;  
 5*1=  5;  5*2= 10;  5*3= 15;  5*4= 20;  5*5= 25;  5*6= 30;  5*7= 35;