printf("1x1=1");
printf("2x1=2 2x2= 4");
printf("3x1=3 3x2= 6 3x3= 9");
printf("4x1=4 4x2= 8 4x3=12 4x4=16");
printf("5x1=5 5x2=10 5x3=15 5x4=20 5x5=25");
printf("6x1=6 6x2=12 6x3=18 6x4=24 6x5=30 6x6=36");
printf("7x1=7 7x2=14 7x3=21 7x4=28 7x5=35 7x6=42 7x7=49");
printf("8x1=8 8x2=16 8x3=24 8x4=32 8x5=40 8x6=48 8x7=56 8x8=64");
printf("9x1=9 9x2=18 9x3=27 9x4=36 9x5=45 9x6=54 9x7=63 9x8=72 9x9=81");