Permutations And Combinations

${ }^{59} \mathrm{C}_2$

${ }^4 \mathrm{C}_2 \times{ }^3 \mathrm{C}_2 \times{ }^3 \mathrm{C}_2$

${ }^4 \mathrm{C}_3$

${ }^3 \mathrm{C}_1 \times{ }^4 \mathrm{C}_0 \times{ }^4 \mathrm{C}_4$