// nested while loops
#include <stdio.h>

int main(void)
{
	int nSize = 20;
	int stepCount = 1,
		nCounter = 1;

	// outer while loop, printing the row
	while (stepCount <= nSize)
	{
		// new line for new row
		printf("\n");
		// inner while loop, printing the column
		while (nCounter <= stepCount)
		{
			// increment by 1
			++nCounter;
			// print character 'W'
			printf("W");
		}
		// reset nCounter  back to 1 for new counting
		nCounter = 1;
		// increment stepCounter by 1 (new row)
		++stepCount;
	}
	printf("\n");
	return 0;
}