int m = 1 << 3;   // In binary: 1 to 1000 
println(m);  // Prints "8" 
int n = 1 << 8;   // In binary: 1 to 100000000 
println(n);  // Prints "256" 
int o = 2 << 3;   // In binary: 10 to 10000 
println(o);  // Prints "16" 
int p = 13 << 1;  // In binary: 1101 to 11010 
println(p);  // Prints "26" 

// Packs four 8 bit numbers into one 32 bit number 
int a = 255;  // Binary: 00000000000000000000000011111111 
int r = 204;  // Binary: 00000000000000000000000011001100 
int g = 204;  // Binary: 00000000000000000000000011001100 
int b = 51;   // Binary: 00000000000000000000000000110011 
a = a << 24;  // Binary: 11111111000000000000000000000000 
r = r << 16;  // Binary: 00000000110011000000000000000000 
g = g << 8;   // Binary: 00000000000000001100110000000000 
 
// Equivalent to "color argb = color(r, g, b, a)" but faster 
color argb = a | r | g | b; 
fill(argb); 
rect(30, 20, 55, 55);