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n = int(input())
heights = [int(input()) for x in range(0, n)]
correct_heights = sorted(heights)
    
def get_cycle(l, pos):
    cycle = []
    while l[pos] != -1:
        if l[pos] == pos:
            break
        cycle.append(l[pos])
        v = l[pos]
        l[pos] = -1
        pos = v
    return cycle    
    
def get_cycles():
    cycles = []
    correct_pos = [int(correct_heights.index(heights[x])) for x in range(0, n)]
    for i in range(0, n):
        cycle = get_cycle(correct_pos, i)
        if len(cycle) > 0:
            cycles.append(cycle)
    return cycles
        
def get_swaps(c):
    swaps = []
    while len(c) > 1:
        swaps.append([c[0], c[len(c)-1]])
        c = c[1:len(c)-1]
    return swaps

def merge_swaps(c):
    merged = []
    for i in c:
        merged.extend(get_swaps(i))
    return merged

def prepare_round(m):
    l = []
    r = []
    for i in m:
        l.append(i[0])
        r.append(i[1])
    r = r[::-1]
    return l + r

def swap_places(merged):
    for i in merged:
        tmp = heights[i[0]]
        heights[i[0]] = heights[i[1]]
        heights[i[1]] = tmp
    
round_list = []    
  
while heights != correct_heights:    
    cycles = get_cycles()    
    merged_swaps = merge_swaps(cycles)    
    r = prepare_round(merged_swaps)
    round_list.append(r)
    swap_places(merged_swaps)
    
print(len(round_list))
for i in round_list:
    print(len(i))
    r = [str(x+1) for x in i]
    print(" ".join(r))